Home / 158,177.70-218,282.31-86,555.88

Finding the Fourth Proportional to 158,177.70, 218,282.31 and 86,555.88

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Solution

The fourth proportional to 158,177.70, 218,282.31 and 86,555.88 is: 119,445.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,177.70 : 218,282.31 = 86,555.88 : x
  2. Step 2: Convert to fraction form
    158,177.70/218,282.31 = 86,555.88/x
  3. Step 3: Cross multiply
    158,177.70x = 218,282.31 × 86,555.88
  4. Step 4: Simplify right side
    158,177.70x = 18,893,617,430.48
  5. Step 5: Solve for x
    x = 18,893,617,430.48/158,177.70
  6. Step 6: Final answer
    x = 119,445.52

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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.