Home / 158,089.30-218,152.36-90,104.58

Finding the Fourth Proportional to 158,089.30, 218,152.36 and 90,104.58

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Solution

The fourth proportional to 158,089.30, 218,152.36 and 90,104.58 is: 124,338.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,089.30 : 218,152.36 = 90,104.58 : x
  2. Step 2: Convert to fraction form
    158,089.30/218,152.36 = 90,104.58/x
  3. Step 3: Cross multiply
    158,089.30x = 218,152.36 × 90,104.58
  4. Step 4: Simplify right side
    158,089.30x = 19,656,526,773.81
  5. Step 5: Solve for x
    x = 19,656,526,773.81/158,089.30
  6. Step 6: Final answer
    x = 124,338.12

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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.