Home / 125,428.95-173,063.52-71,705.30

Finding the Fourth Proportional to 125,428.95, 173,063.52 and 71,705.30

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Solution

The fourth proportional to 125,428.95, 173,063.52 and 71,705.30 is: 98,937.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,428.95 : 173,063.52 = 71,705.30 : x
  2. Step 2: Convert to fraction form
    125,428.95/173,063.52 = 71,705.30/x
  3. Step 3: Cross multiply
    125,428.95x = 173,063.52 × 71,705.30
  4. Step 4: Simplify right side
    125,428.95x = 12,409,570,755.34
  5. Step 5: Solve for x
    x = 12,409,570,755.34/125,428.95
  6. Step 6: Final answer
    x = 98,937.05

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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.