Home / 185,382.40-255,827.20-100,499.20

Finding the Fourth Proportional to 185,382.40, 255,827.20 and 100,499.20

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Solution

The fourth proportional to 185,382.40, 255,827.20 and 100,499.20 is: 138,688.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,382.40 : 255,827.20 = 100,499.20 : x
  2. Step 2: Convert to fraction form
    185,382.40/255,827.20 = 100,499.20/x
  3. Step 3: Cross multiply
    185,382.40x = 255,827.20 × 100,499.20
  4. Step 4: Simplify right side
    185,382.40x = 25,710,428,938.24
  5. Step 5: Solve for x
    x = 25,710,428,938.24/185,382.40
  6. Step 6: Final answer
    x = 138,688.62

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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.