Home / 75,246.20-112,898.10-74,065.40

Finding the Fourth Proportional to 75,246.20, 112,898.10 and 74,065.40

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Solution

The fourth proportional to 75,246.20, 112,898.10 and 74,065.40 is: 111,126.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,246.20 : 112,898.10 = 74,065.40 : x
  2. Step 2: Convert to fraction form
    75,246.20/112,898.10 = 74,065.40/x
  3. Step 3: Cross multiply
    75,246.20x = 112,898.10 × 74,065.40
  4. Step 4: Simplify right side
    75,246.20x = 8,361,842,935.74
  5. Step 5: Solve for x
    x = 8,361,842,935.74/75,246.20
  6. Step 6: Final answer
    x = 111,126.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.