Home / 185,039.73-255,359.80-112,417.90

Finding the Fourth Proportional to 185,039.73, 255,359.80 and 112,417.90

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Solution

The fourth proportional to 185,039.73, 255,359.80 and 112,417.90 is: 155,139.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,039.73 : 255,359.80 = 112,417.90 : x
  2. Step 2: Convert to fraction form
    185,039.73/255,359.80 = 112,417.90/x
  3. Step 3: Cross multiply
    185,039.73x = 255,359.80 × 112,417.90
  4. Step 4: Simplify right side
    185,039.73x = 28,707,012,460.42
  5. Step 5: Solve for x
    x = 28,707,012,460.42/185,039.73
  6. Step 6: Final answer
    x = 155,139.72

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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.