Home / 128,624.04-177,382.50-88,266.60

Finding the Fourth Proportional to 128,624.04, 177,382.50 and 88,266.60

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Solution

The fourth proportional to 128,624.04, 177,382.50 and 88,266.60 is: 121,726.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,624.04 : 177,382.50 = 88,266.60 : x
  2. Step 2: Convert to fraction form
    128,624.04/177,382.50 = 88,266.60/x
  3. Step 3: Cross multiply
    128,624.04x = 177,382.50 × 88,266.60
  4. Step 4: Simplify right side
    128,624.04x = 15,656,950,174.50
  5. Step 5: Solve for x
    x = 15,656,950,174.50/128,624.04
  6. Step 6: Final answer
    x = 121,726.47

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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.