Home / 124,685,381.09-172,037,277.07-74,439,820.73

Finding the Fourth Proportional to 124,685,381.09, 172,037,277.07 and 74,439,820.73

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Solution

The fourth proportional to 124,685,381.09, 172,037,277.07 and 74,439,820.73 is: 102,709,908.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,685,381.09 : 172,037,277.07 = 74,439,820.73 : x
  2. Step 2: Convert to fraction form
    124,685,381.09/172,037,277.07 = 74,439,820.73/x
  3. Step 3: Cross multiply
    124,685,381.09x = 172,037,277.07 × 74,439,820.73
  4. Step 4: Simplify right side
    124,685,381.09x = 12,806,424,064,212,134
  5. Step 5: Solve for x
    x = 12,806,424,064,212,134/124,685,381.09
  6. Step 6: Final answer
    x = 102,709,908.35

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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.