Home / 158,149.02-218,248.38-86,535.30

Finding the Fourth Proportional to 158,149.02, 218,248.38 and 86,535.30

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Solution

The fourth proportional to 158,149.02, 218,248.38 and 86,535.30 is: 119,420.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,149.02 : 218,248.38 = 86,535.30 : x
  2. Step 2: Convert to fraction form
    158,149.02/218,248.38 = 86,535.30/x
  3. Step 3: Cross multiply
    158,149.02x = 218,248.38 × 86,535.30
  4. Step 4: Simplify right side
    158,149.02x = 18,886,189,037.81
  5. Step 5: Solve for x
    x = 18,886,189,037.81/158,149.02
  6. Step 6: Final answer
    x = 119,420.21

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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.