Home / 157,733.10-236,402.76-78,869.88

Finding the Fourth Proportional to 157,733.10, 236,402.76 and 78,869.88

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Solution

The fourth proportional to 157,733.10, 236,402.76 and 78,869.88 is: 118,206.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,733.10 : 236,402.76 = 78,869.88 : x
  2. Step 2: Convert to fraction form
    157,733.10/236,402.76 = 78,869.88/x
  3. Step 3: Cross multiply
    157,733.10x = 236,402.76 × 78,869.88
  4. Step 4: Simplify right side
    157,733.10x = 18,645,057,312.87
  5. Step 5: Solve for x
    x = 18,645,057,312.87/157,733.10
  6. Step 6: Final answer
    x = 118,206.37

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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.