Home / 124,685,390.85-172,037,290.53-74,439,830.49

Finding the Fourth Proportional to 124,685,390.85, 172,037,290.53 and 74,439,830.49

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Solution

The fourth proportional to 124,685,390.85, 172,037,290.53 and 74,439,830.49 is: 102,709,921.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,685,390.85 : 172,037,290.53 = 74,439,830.49 : x
  2. Step 2: Convert to fraction form
    124,685,390.85/172,037,290.53 = 74,439,830.49/x
  3. Step 3: Cross multiply
    124,685,390.85x = 172,037,290.53 × 74,439,830.49
  4. Step 4: Simplify right side
    124,685,390.85x = 12,806,426,745,012,082
  5. Step 5: Solve for x
    x = 12,806,426,745,012,082/124,685,390.85
  6. Step 6: Final answer
    x = 102,709,921.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.