Home / 153,104.30-211,287.04-85,123.97

Finding the Fourth Proportional to 153,104.30, 211,287.04 and 85,123.97

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Solution

The fourth proportional to 153,104.30, 211,287.04 and 85,123.97 is: 117,472.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,104.30 : 211,287.04 = 85,123.97 : x
  2. Step 2: Convert to fraction form
    153,104.30/211,287.04 = 85,123.97/x
  3. Step 3: Cross multiply
    153,104.30x = 211,287.04 × 85,123.97
  4. Step 4: Simplify right side
    153,104.30x = 17,985,590,385.10
  5. Step 5: Solve for x
    x = 17,985,590,385.10/153,104.30
  6. Step 6: Final answer
    x = 117,472.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.