Home / 112,913.87-155,821.14-62,612.87

Finding the Fourth Proportional to 112,913.87, 155,821.14 and 62,612.87

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Solution

The fourth proportional to 112,913.87, 155,821.14 and 62,612.87 is: 86,405.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,913.87 : 155,821.14 = 62,612.87 : x
  2. Step 2: Convert to fraction form
    112,913.87/155,821.14 = 62,612.87/x
  3. Step 3: Cross multiply
    112,913.87x = 155,821.14 × 62,612.87
  4. Step 4: Simplify right side
    112,913.87x = 9,756,407,689.90
  5. Step 5: Solve for x
    x = 9,756,407,689.90/112,913.87
  6. Step 6: Final answer
    x = 86,405.75

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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.