Home / 125,430.90-173,081.61-70,989.18

Finding the Fourth Proportional to 125,430.90, 173,081.61 and 70,989.18

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Solution

The fourth proportional to 125,430.90, 173,081.61 and 70,989.18 is: 97,957.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,430.90 : 173,081.61 = 70,989.18 : x
  2. Step 2: Convert to fraction form
    125,430.90/173,081.61 = 70,989.18/x
  3. Step 3: Cross multiply
    125,430.90x = 173,081.61 × 70,989.18
  4. Step 4: Simplify right side
    125,430.90x = 12,286,921,566.98
  5. Step 5: Solve for x
    x = 12,286,921,566.98/125,430.90
  6. Step 6: Final answer
    x = 97,957.69

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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.