Home / 158,365.28-218,543.72-85,767.95

Finding the Fourth Proportional to 158,365.28, 218,543.72 and 85,767.95

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Solution

The fourth proportional to 158,365.28, 218,543.72 and 85,767.95 is: 118,359.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,365.28 : 218,543.72 = 85,767.95 : x
  2. Step 2: Convert to fraction form
    158,365.28/218,543.72 = 85,767.95/x
  3. Step 3: Cross multiply
    158,365.28x = 218,543.72 × 85,767.95
  4. Step 4: Simplify right side
    158,365.28x = 18,744,045,328.22
  5. Step 5: Solve for x
    x = 18,744,045,328.22/158,365.28
  6. Step 6: Final answer
    x = 118,359.57

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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.