Home / 158,327.85-218,438.19-90,295.68

Finding the Fourth Proportional to 158,327.85, 218,438.19 and 90,295.68

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Solution

The fourth proportional to 158,327.85, 218,438.19 and 90,295.68 is: 124,577.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,327.85 : 218,438.19 = 90,295.68 : x
  2. Step 2: Convert to fraction form
    158,327.85/218,438.19 = 90,295.68/x
  3. Step 3: Cross multiply
    158,327.85x = 218,438.19 × 90,295.68
  4. Step 4: Simplify right side
    158,327.85x = 19,724,024,904.02
  5. Step 5: Solve for x
    x = 19,724,024,904.02/158,327.85
  6. Step 6: Final answer
    x = 124,577.10

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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.