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Finding the Fourth Proportional to 153,545.67, 211,899.60 and 85,562.73

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Solution

The fourth proportional to 153,545.67, 211,899.60 and 85,562.73 is: 118,080.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,545.67 : 211,899.60 = 85,562.73 : x
  2. Step 2: Convert to fraction form
    153,545.67/211,899.60 = 85,562.73/x
  3. Step 3: Cross multiply
    153,545.67x = 211,899.60 × 85,562.73
  4. Step 4: Simplify right side
    153,545.67x = 18,130,708,261.91
  5. Step 5: Solve for x
    x = 18,130,708,261.91/153,545.67
  6. Step 6: Final answer
    x = 118,080.23

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1.5x scale

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.