Home / 156,717.48-235,115.10-45,909.48

Finding the Fourth Proportional to 156,717.48, 235,115.10 and 45,909.48

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Solution

The fourth proportional to 156,717.48, 235,115.10 and 45,909.48 is: 68,875.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,717.48 : 235,115.10 = 45,909.48 : x
  2. Step 2: Convert to fraction form
    156,717.48/235,115.10 = 45,909.48/x
  3. Step 3: Cross multiply
    156,717.48x = 235,115.10 × 45,909.48
  4. Step 4: Simplify right side
    156,717.48x = 10,794,011,981.15
  5. Step 5: Solve for x
    x = 10,794,011,981.15/156,717.48
  6. Step 6: Final answer
    x = 68,875.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.