Home / 103,115.64-142,257.06-67,292.76

Finding the Fourth Proportional to 103,115.64, 142,257.06 and 67,292.76

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Solution

The fourth proportional to 103,115.64, 142,257.06 and 67,292.76 is: 92,836.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,115.64 : 142,257.06 = 67,292.76 : x
  2. Step 2: Convert to fraction form
    103,115.64/142,257.06 = 67,292.76/x
  3. Step 3: Cross multiply
    103,115.64x = 142,257.06 × 67,292.76
  4. Step 4: Simplify right side
    103,115.64x = 9,572,870,196.89
  5. Step 5: Solve for x
    x = 9,572,870,196.89/103,115.64
  6. Step 6: Final answer
    x = 92,836.26

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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.