Home / 112,416.47-155,134.74-62,115.47

Finding the Fourth Proportional to 112,416.47, 155,134.74 and 62,115.47

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Solution

The fourth proportional to 112,416.47, 155,134.74 and 62,115.47 is: 85,719.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,416.47 : 155,134.74 = 62,115.47 : x
  2. Step 2: Convert to fraction form
    112,416.47/155,134.74 = 62,115.47/x
  3. Step 3: Cross multiply
    112,416.47x = 155,134.74 × 62,115.47
  4. Step 4: Simplify right side
    112,416.47x = 9,636,267,288.43
  5. Step 5: Solve for x
    x = 9,636,267,288.43/112,416.47
  6. Step 6: Final answer
    x = 85,719.35

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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.