Home / 112,938.17-155,859.55-67,607.38

Finding the Fourth Proportional to 112,938.17, 155,859.55 and 67,607.38

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Solution

The fourth proportional to 112,938.17, 155,859.55 and 67,607.38 is: 93,301.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,938.17 : 155,859.55 = 67,607.38 : x
  2. Step 2: Convert to fraction form
    112,938.17/155,859.55 = 67,607.38/x
  3. Step 3: Cross multiply
    112,938.17x = 155,859.55 × 67,607.38
  4. Step 4: Simplify right side
    112,938.17x = 10,537,255,044.18
  5. Step 5: Solve for x
    x = 10,537,255,044.18/112,938.17
  6. Step 6: Final answer
    x = 93,301.10

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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.