Home / 153,126.06-229,735.80-78,298.77

Finding the Fourth Proportional to 153,126.06, 229,735.80 and 78,298.77

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Solution

The fourth proportional to 153,126.06, 229,735.80 and 78,298.77 is: 117,472.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,126.06 : 229,735.80 = 78,298.77 : x
  2. Step 2: Convert to fraction form
    153,126.06/229,735.80 = 78,298.77/x
  3. Step 3: Cross multiply
    153,126.06x = 229,735.80 × 78,298.77
  4. Step 4: Simplify right side
    153,126.06x = 17,988,030,564.97
  5. Step 5: Solve for x
    x = 17,988,030,564.97/153,126.06
  6. Step 6: Final answer
    x = 117,472.04

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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.