Home / 151,557.13-209,166.60-91,158.13

Finding the Fourth Proportional to 151,557.13, 209,166.60 and 91,158.13

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Solution

The fourth proportional to 151,557.13, 209,166.60 and 91,158.13 is: 125,808.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,557.13 : 209,166.60 = 91,158.13 : x
  2. Step 2: Convert to fraction form
    151,557.13/209,166.60 = 91,158.13/x
  3. Step 3: Cross multiply
    151,557.13x = 209,166.60 × 91,158.13
  4. Step 4: Simplify right side
    151,557.13x = 19,067,236,114.46
  5. Step 5: Solve for x
    x = 19,067,236,114.46/151,557.13
  6. Step 6: Final answer
    x = 125,808.90

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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.