Home / 157,209.33-235,665.76-78,248.91

Finding the Fourth Proportional to 157,209.33, 235,665.76 and 78,248.91

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Solution

The fourth proportional to 157,209.33, 235,665.76 and 78,248.91 is: 117,299.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,209.33 : 235,665.76 = 78,248.91 : x
  2. Step 2: Convert to fraction form
    157,209.33/235,665.76 = 78,248.91/x
  3. Step 3: Cross multiply
    157,209.33x = 235,665.76 × 78,248.91
  4. Step 4: Simplify right side
    157,209.33x = 18,440,588,844.32
  5. Step 5: Solve for x
    x = 18,440,588,844.32/157,209.33
  6. Step 6: Final answer
    x = 117,299.58

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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.