Home / 109,509.33-151,155.20-64,197.12

Finding the Fourth Proportional to 109,509.33, 151,155.20 and 64,197.12

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Solution

The fourth proportional to 109,509.33, 151,155.20 and 64,197.12 is: 88,610.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,509.33 : 151,155.20 = 64,197.12 : x
  2. Step 2: Convert to fraction form
    109,509.33/151,155.20 = 64,197.12/x
  3. Step 3: Cross multiply
    109,509.33x = 151,155.20 × 64,197.12
  4. Step 4: Simplify right side
    109,509.33x = 9,703,728,999.61
  5. Step 5: Solve for x
    x = 9,703,728,999.61/109,509.33
  6. Step 6: Final answer
    x = 88,610.98

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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.