Home / 148,847.79-205,409.10-80,864.22

Finding the Fourth Proportional to 148,847.79, 205,409.10 and 80,864.22

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Solution

The fourth proportional to 148,847.79, 205,409.10 and 80,864.22 is: 111,592.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,847.79 : 205,409.10 = 80,864.22 : x
  2. Step 2: Convert to fraction form
    148,847.79/205,409.10 = 80,864.22/x
  3. Step 3: Cross multiply
    148,847.79x = 205,409.10 × 80,864.22
  4. Step 4: Simplify right side
    148,847.79x = 16,610,246,652.40
  5. Step 5: Solve for x
    x = 16,610,246,652.40/148,847.79
  6. Step 6: Final answer
    x = 111,592.16

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1.5x scale

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.