Home / 125,854.20-173,688.03-72,156.06

Finding the Fourth Proportional to 125,854.20, 173,688.03 and 72,156.06

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Solution

The fourth proportional to 125,854.20, 173,688.03 and 72,156.06 is: 99,580.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,854.20 : 173,688.03 = 72,156.06 : x
  2. Step 2: Convert to fraction form
    125,854.20/173,688.03 = 72,156.06/x
  3. Step 3: Cross multiply
    125,854.20x = 173,688.03 × 72,156.06
  4. Step 4: Simplify right side
    125,854.20x = 12,532,643,913.96
  5. Step 5: Solve for x
    x = 12,532,643,913.96/125,854.20
  6. Step 6: Final answer
    x = 99,580.66

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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.