Home / 125,788.86-173,589.93-72,072.72

Finding the Fourth Proportional to 125,788.86, 173,589.93 and 72,072.72

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Solution

The fourth proportional to 125,788.86, 173,589.93 and 72,072.72 is: 99,461.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,788.86 : 173,589.93 = 72,072.72 : x
  2. Step 2: Convert to fraction form
    125,788.86/173,589.93 = 72,072.72/x
  3. Step 3: Cross multiply
    125,788.86x = 173,589.93 × 72,072.72
  4. Step 4: Simplify right side
    125,788.86x = 12,511,098,419.71
  5. Step 5: Solve for x
    x = 12,511,098,419.71/125,788.86
  6. Step 6: Final answer
    x = 99,461.10

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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.