Home / 151,655.30-209,285.04-83,672.27

Finding the Fourth Proportional to 151,655.30, 209,285.04 and 83,672.27

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Solution

The fourth proportional to 151,655.30, 209,285.04 and 83,672.27 is: 115,468.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,655.30 : 209,285.04 = 83,672.27 : x
  2. Step 2: Convert to fraction form
    151,655.30/209,285.04 = 83,672.27/x
  3. Step 3: Cross multiply
    151,655.30x = 209,285.04 × 83,672.27
  4. Step 4: Simplify right side
    151,655.30x = 17,511,352,909.05
  5. Step 5: Solve for x
    x = 17,511,352,909.05/151,655.30
  6. Step 6: Final answer
    x = 115,468.13

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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.