Home / 109,857.20-151,580.58-64,542.56

Finding the Fourth Proportional to 109,857.20, 151,580.58 and 64,542.56

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Solution

The fourth proportional to 109,857.20, 151,580.58 and 64,542.56 is: 89,055.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,857.20 : 151,580.58 = 64,542.56 : x
  2. Step 2: Convert to fraction form
    109,857.20/151,580.58 = 64,542.56/x
  3. Step 3: Cross multiply
    109,857.20x = 151,580.58 × 64,542.56
  4. Step 4: Simplify right side
    109,857.20x = 9,783,398,679.48
  5. Step 5: Solve for x
    x = 9,783,398,679.48/109,857.20
  6. Step 6: Final answer
    x = 89,055.60

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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.