Home / 153,060.24-229,659.66-78,141.72

Finding the Fourth Proportional to 153,060.24, 229,659.66 and 78,141.72

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Solution

The fourth proportional to 153,060.24, 229,659.66 and 78,141.72 is: 117,247.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,060.24 : 229,659.66 = 78,141.72 : x
  2. Step 2: Convert to fraction form
    153,060.24/229,659.66 = 78,141.72/x
  3. Step 3: Cross multiply
    153,060.24x = 229,659.66 × 78,141.72
  4. Step 4: Simplify right side
    153,060.24x = 17,946,000,847.02
  5. Step 5: Solve for x
    x = 17,946,000,847.02/153,060.24
  6. Step 6: Final answer
    x = 117,247.96

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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.