Home / 158,134.14-218,234.79-91,087.74

Finding the Fourth Proportional to 158,134.14, 218,234.79 and 91,087.74

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Solution

The fourth proportional to 158,134.14, 218,234.79 and 91,087.74 is: 125,706.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,134.14 : 218,234.79 = 91,087.74 : x
  2. Step 2: Convert to fraction form
    158,134.14/218,234.79 = 91,087.74/x
  3. Step 3: Cross multiply
    158,134.14x = 218,234.79 × 91,087.74
  4. Step 4: Simplify right side
    158,134.14x = 19,878,513,810.47
  5. Step 5: Solve for x
    x = 19,878,513,810.47/158,134.14
  6. Step 6: Final answer
    x = 125,706.66

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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.