Home / 185,280.73-255,688.29-100,397.95

Finding the Fourth Proportional to 185,280.73, 255,688.29 and 100,397.95

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Solution

The fourth proportional to 185,280.73, 255,688.29 and 100,397.95 is: 138,549.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,280.73 : 255,688.29 = 100,397.95 : x
  2. Step 2: Convert to fraction form
    185,280.73/255,688.29 = 100,397.95/x
  3. Step 3: Cross multiply
    185,280.73x = 255,688.29 × 100,397.95
  4. Step 4: Simplify right side
    185,280.73x = 25,670,580,155.01
  5. Step 5: Solve for x
    x = 25,670,580,155.01/185,280.73
  6. Step 6: Final answer
    x = 138,549.65

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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.