Home / 158,135.20-218,222.40-93,607.76

Finding the Fourth Proportional to 158,135.20, 218,222.40 and 93,607.76

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Solution

The fourth proportional to 158,135.20, 218,222.40 and 93,607.76 is: 129,176.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,135.20 : 218,222.40 = 93,607.76 : x
  2. Step 2: Convert to fraction form
    158,135.20/218,222.40 = 93,607.76/x
  3. Step 3: Cross multiply
    158,135.20x = 218,222.40 × 93,607.76
  4. Step 4: Simplify right side
    158,135.20x = 20,427,310,045.82
  5. Step 5: Solve for x
    x = 20,427,310,045.82/158,135.20
  6. Step 6: Final answer
    x = 129,176.24

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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.