Home / 112,424.55-155,145.78-62,123.55

Finding the Fourth Proportional to 112,424.55, 155,145.78 and 62,123.55

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Solution

The fourth proportional to 112,424.55, 155,145.78 and 62,123.55 is: 85,730.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,424.55 : 155,145.78 = 62,123.55 : x
  2. Step 2: Convert to fraction form
    112,424.55/155,145.78 = 62,123.55/x
  3. Step 3: Cross multiply
    112,424.55x = 155,145.78 × 62,123.55
  4. Step 4: Simplify right side
    112,424.55x = 9,638,206,621.12
  5. Step 5: Solve for x
    x = 9,638,206,621.12/112,424.55
  6. Step 6: Final answer
    x = 85,730.44

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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.