Home / 125,988.32-173,856.81-72,268.31

Finding the Fourth Proportional to 125,988.32, 173,856.81 and 72,268.31

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Solution

The fourth proportional to 125,988.32, 173,856.81 and 72,268.31 is: 99,726.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,988.32 : 173,856.81 = 72,268.31 : x
  2. Step 2: Convert to fraction form
    125,988.32/173,856.81 = 72,268.31/x
  3. Step 3: Cross multiply
    125,988.32x = 173,856.81 × 72,268.31
  4. Step 4: Simplify right side
    125,988.32x = 12,564,338,546.34
  5. Step 5: Solve for x
    x = 12,564,338,546.34/125,988.32
  6. Step 6: Final answer
    x = 99,726.22

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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.