Home / 158,518.05-218,770.56-90,545.19

Finding the Fourth Proportional to 158,518.05, 218,770.56 and 90,545.19

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Solution

The fourth proportional to 158,518.05, 218,770.56 and 90,545.19 is: 124,961.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,518.05 : 218,770.56 = 90,545.19 : x
  2. Step 2: Convert to fraction form
    158,518.05/218,770.56 = 90,545.19/x
  3. Step 3: Cross multiply
    158,518.05x = 218,770.56 × 90,545.19
  4. Step 4: Simplify right side
    158,518.05x = 19,808,621,921.61
  5. Step 5: Solve for x
    x = 19,808,621,921.61/158,518.05
  6. Step 6: Final answer
    x = 124,961.30

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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.