Home / 158,368.20-218,548.13-86,750.76

Finding the Fourth Proportional to 158,368.20, 218,548.13 and 86,750.76

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Solution

The fourth proportional to 158,368.20, 218,548.13 and 86,750.76 is: 119,716.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,368.20 : 218,548.13 = 86,750.76 : x
  2. Step 2: Convert to fraction form
    158,368.20/218,548.13 = 86,750.76/x
  3. Step 3: Cross multiply
    158,368.20x = 218,548.13 × 86,750.76
  4. Step 4: Simplify right side
    158,368.20x = 18,959,216,759.88
  5. Step 5: Solve for x
    x = 18,959,216,759.88/158,368.20
  6. Step 6: Final answer
    x = 119,716.06

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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.