Home / 90,547.20-135,552.96-67,276.80

Finding the Fourth Proportional to 90,547.20, 135,552.96 and 67,276.80

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Solution

The fourth proportional to 90,547.20, 135,552.96 and 67,276.80 is: 100,716.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,547.20 : 135,552.96 = 67,276.80 : x
  2. Step 2: Convert to fraction form
    90,547.20/135,552.96 = 67,276.80/x
  3. Step 3: Cross multiply
    90,547.20x = 135,552.96 × 67,276.80
  4. Step 4: Simplify right side
    90,547.20x = 9,119,569,379.33
  5. Step 5: Solve for x
    x = 9,119,569,379.33/90,547.20
  6. Step 6: Final answer
    x = 100,716.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.