Home / 124,752.21-172,158.11-67,391.55

Finding the Fourth Proportional to 124,752.21, 172,158.11 and 67,391.55

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Solution

The fourth proportional to 124,752.21, 172,158.11 and 67,391.55 is: 93,000.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,752.21 : 172,158.11 = 67,391.55 : x
  2. Step 2: Convert to fraction form
    124,752.21/172,158.11 = 67,391.55/x
  3. Step 3: Cross multiply
    124,752.21x = 172,158.11 × 67,391.55
  4. Step 4: Simplify right side
    124,752.21x = 11,602,001,541.01
  5. Step 5: Solve for x
    x = 11,602,001,541.01/124,752.21
  6. Step 6: Final answer
    x = 93,000.37

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1.5x scale

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.