Home / 158,046.12-218,124.02-90,087.88

Finding the Fourth Proportional to 158,046.12, 218,124.02 and 90,087.88

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Solution

The fourth proportional to 158,046.12, 218,124.02 and 90,087.88 is: 124,332.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,046.12 : 218,124.02 = 90,087.88 : x
  2. Step 2: Convert to fraction form
    158,046.12/218,124.02 = 90,087.88/x
  3. Step 3: Cross multiply
    158,046.12x = 218,124.02 × 90,087.88
  4. Step 4: Simplify right side
    158,046.12x = 19,650,330,538.88
  5. Step 5: Solve for x
    x = 19,650,330,538.88/158,046.12
  6. Step 6: Final answer
    x = 124,332.89

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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.