Home / 89,815.30-135,018.24-83,319.94

Finding the Fourth Proportional to 89,815.30, 135,018.24 and 83,319.94

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Solution

The fourth proportional to 89,815.30, 135,018.24 and 83,319.94 is: 125,253.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,815.30 : 135,018.24 = 83,319.94 : x
  2. Step 2: Convert to fraction form
    89,815.30/135,018.24 = 83,319.94/x
  3. Step 3: Cross multiply
    89,815.30x = 135,018.24 × 83,319.94
  4. Step 4: Simplify right side
    89,815.30x = 11,249,711,655.71
  5. Step 5: Solve for x
    x = 11,249,711,655.71/89,815.30
  6. Step 6: Final answer
    x = 125,253.84

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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.