Home / 151,743.12-209,405.50-83,760.12

Finding the Fourth Proportional to 151,743.12, 209,405.50 and 83,760.12

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Solution

The fourth proportional to 151,743.12, 209,405.50 and 83,760.12 is: 115,588.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,743.12 : 209,405.50 = 83,760.12 : x
  2. Step 2: Convert to fraction form
    151,743.12/209,405.50 = 83,760.12/x
  3. Step 3: Cross multiply
    151,743.12x = 209,405.50 × 83,760.12
  4. Step 4: Simplify right side
    151,743.12x = 17,539,829,808.66
  5. Step 5: Solve for x
    x = 17,539,829,808.66/151,743.12
  6. Step 6: Final answer
    x = 115,588.96

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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.