Home / 112,817.10-155,689.41-61,834.71

Finding the Fourth Proportional to 112,817.10, 155,689.41 and 61,834.71

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Solution

The fourth proportional to 112,817.10, 155,689.41 and 61,834.71 is: 85,332.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,817.10 : 155,689.41 = 61,834.71 : x
  2. Step 2: Convert to fraction form
    112,817.10/155,689.41 = 61,834.71/x
  3. Step 3: Cross multiply
    112,817.10x = 155,689.41 × 61,834.71
  4. Step 4: Simplify right side
    112,817.10x = 9,627,008,738.97
  5. Step 5: Solve for x
    x = 9,627,008,738.97/112,817.10
  6. Step 6: Final answer
    x = 85,332.89

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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.