Home / 145,276.18-200,470.35-81,624.58

Finding the Fourth Proportional to 145,276.18, 200,470.35 and 81,624.58

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Solution

The fourth proportional to 145,276.18, 200,470.35 and 81,624.58 is: 112,635.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,276.18 : 200,470.35 = 81,624.58 : x
  2. Step 2: Convert to fraction form
    145,276.18/200,470.35 = 81,624.58/x
  3. Step 3: Cross multiply
    145,276.18x = 200,470.35 × 81,624.58
  4. Step 4: Simplify right side
    145,276.18x = 16,363,308,121.20
  5. Step 5: Solve for x
    x = 16,363,308,121.20/145,276.18
  6. Step 6: Final answer
    x = 112,635.86

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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.