Home / 109,945.22-151,711.60-61,549.80

Finding the Fourth Proportional to 109,945.22, 151,711.60 and 61,549.80

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Solution

The fourth proportional to 109,945.22, 151,711.60 and 61,549.80 is: 84,931.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,945.22 : 151,711.60 = 61,549.80 : x
  2. Step 2: Convert to fraction form
    109,945.22/151,711.60 = 61,549.80/x
  3. Step 3: Cross multiply
    109,945.22x = 151,711.60 × 61,549.80
  4. Step 4: Simplify right side
    109,945.22x = 9,337,818,637.68
  5. Step 5: Solve for x
    x = 9,337,818,637.68/109,945.22
  6. Step 6: Final answer
    x = 84,931.56

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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.