Home / 153,098.24-211,279.20-85,117.28

Finding the Fourth Proportional to 153,098.24, 211,279.20 and 85,117.28

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Solution

The fourth proportional to 153,098.24, 211,279.20 and 85,117.28 is: 117,463.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,098.24 : 211,279.20 = 85,117.28 : x
  2. Step 2: Convert to fraction form
    153,098.24/211,279.20 = 85,117.28/x
  3. Step 3: Cross multiply
    153,098.24x = 211,279.20 × 85,117.28
  4. Step 4: Simplify right side
    153,098.24x = 17,983,510,824.58
  5. Step 5: Solve for x
    x = 17,983,510,824.58/153,098.24
  6. Step 6: Final answer
    x = 117,463.86

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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.