Home / 158,515.28-218,749.92-86,898.32

Finding the Fourth Proportional to 158,515.28, 218,749.92 and 86,898.32

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Solution

The fourth proportional to 158,515.28, 218,749.92 and 86,898.32 is: 119,919.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,515.28 : 218,749.92 = 86,898.32 : x
  2. Step 2: Convert to fraction form
    158,515.28/218,749.92 = 86,898.32/x
  3. Step 3: Cross multiply
    158,515.28x = 218,749.92 × 86,898.32
  4. Step 4: Simplify right side
    158,515.28x = 19,009,000,548.13
  5. Step 5: Solve for x
    x = 19,009,000,548.13/158,515.28
  6. Step 6: Final answer
    x = 119,919.04

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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.