Home / 158,174.76-218,283.18-91,106.76

Finding the Fourth Proportional to 158,174.76, 218,283.18 and 91,106.76

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Solution

The fourth proportional to 158,174.76, 218,283.18 and 91,106.76 is: 125,728.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,174.76 : 218,283.18 = 91,106.76 : x
  2. Step 2: Convert to fraction form
    158,174.76/218,283.18 = 91,106.76/x
  3. Step 3: Cross multiply
    158,174.76x = 218,283.18 × 91,106.76
  4. Step 4: Simplify right side
    158,174.76x = 19,887,073,292.30
  5. Step 5: Solve for x
    x = 19,887,073,292.30/158,174.76
  6. Step 6: Final answer
    x = 125,728.49

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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.