Home / 151,132.64-208,592.82-86,645.16

Finding the Fourth Proportional to 151,132.64, 208,592.82 and 86,645.16

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Solution

The fourth proportional to 151,132.64, 208,592.82 and 86,645.16 is: 119,587.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,132.64 : 208,592.82 = 86,645.16 : x
  2. Step 2: Convert to fraction form
    151,132.64/208,592.82 = 86,645.16/x
  3. Step 3: Cross multiply
    151,132.64x = 208,592.82 × 86,645.16
  4. Step 4: Simplify right side
    151,132.64x = 18,073,558,263.75
  5. Step 5: Solve for x
    x = 18,073,558,263.75/151,132.64
  6. Step 6: Final answer
    x = 119,587.40

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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.