Home / 151,758.04-209,437.68-83,788.10

Finding the Fourth Proportional to 151,758.04, 209,437.68 and 83,788.10

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Solution

The fourth proportional to 151,758.04, 209,437.68 and 83,788.10 is: 115,633.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,758.04 : 209,437.68 = 83,788.10 : x
  2. Step 2: Convert to fraction form
    151,758.04/209,437.68 = 83,788.10/x
  3. Step 3: Cross multiply
    151,758.04x = 209,437.68 × 83,788.10
  4. Step 4: Simplify right side
    151,758.04x = 17,548,385,275.61
  5. Step 5: Solve for x
    x = 17,548,385,275.61/151,758.04
  6. Step 6: Final answer
    x = 115,633.97

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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.