Home / 153,475.33-211,767.85-85,490.61

Finding the Fourth Proportional to 153,475.33, 211,767.85 and 85,490.61

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Solution

The fourth proportional to 153,475.33, 211,767.85 and 85,490.61 is: 117,961.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,475.33 : 211,767.85 = 85,490.61 : x
  2. Step 2: Convert to fraction form
    153,475.33/211,767.85 = 85,490.61/x
  3. Step 3: Cross multiply
    153,475.33x = 211,767.85 × 85,490.61
  4. Step 4: Simplify right side
    153,475.33x = 18,104,163,236.17
  5. Step 5: Solve for x
    x = 18,104,163,236.17/153,475.33
  6. Step 6: Final answer
    x = 117,961.39

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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.