Home / 149,688.16-206,595.84-89,262.40

Finding the Fourth Proportional to 149,688.16, 206,595.84 and 89,262.40

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Solution

The fourth proportional to 149,688.16, 206,595.84 and 89,262.40 is: 123,197.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,688.16 : 206,595.84 = 89,262.40 : x
  2. Step 2: Convert to fraction form
    149,688.16/206,595.84 = 89,262.40/x
  3. Step 3: Cross multiply
    149,688.16x = 206,595.84 × 89,262.40
  4. Step 4: Simplify right side
    149,688.16x = 18,441,240,508.42
  5. Step 5: Solve for x
    x = 18,441,240,508.42/149,688.16
  6. Step 6: Final answer
    x = 123,197.72

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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.