Home / 125,332.63-172,861.27-77,612.47

Finding the Fourth Proportional to 125,332.63, 172,861.27 and 77,612.47

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Solution

The fourth proportional to 125,332.63, 172,861.27 and 77,612.47 is: 107,044.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,332.63 : 172,861.27 = 77,612.47 : x
  2. Step 2: Convert to fraction form
    125,332.63/172,861.27 = 77,612.47/x
  3. Step 3: Cross multiply
    125,332.63x = 172,861.27 × 77,612.47
  4. Step 4: Simplify right side
    125,332.63x = 13,416,190,132.04
  5. Step 5: Solve for x
    x = 13,416,190,132.04/125,332.63
  6. Step 6: Final answer
    x = 107,044.67

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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.