Home / 158,154.80-218,253.48-86,535.12

Finding the Fourth Proportional to 158,154.80, 218,253.48 and 86,535.12

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Solution

The fourth proportional to 158,154.80, 218,253.48 and 86,535.12 is: 119,418.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,154.80 : 218,253.48 = 86,535.12 : x
  2. Step 2: Convert to fraction form
    158,154.80/218,253.48 = 86,535.12/x
  3. Step 3: Cross multiply
    158,154.80x = 218,253.48 × 86,535.12
  4. Step 4: Simplify right side
    158,154.80x = 18,886,591,082.22
  5. Step 5: Solve for x
    x = 18,886,591,082.22/158,154.80
  6. Step 6: Final answer
    x = 119,418.39

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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.