Home / 109,652.17-151,328.79-87,176.64

Finding the Fourth Proportional to 109,652.17, 151,328.79 and 87,176.64

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Solution

The fourth proportional to 109,652.17, 151,328.79 and 87,176.64 is: 120,310.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,652.17 : 151,328.79 = 87,176.64 : x
  2. Step 2: Convert to fraction form
    109,652.17/151,328.79 = 87,176.64/x
  3. Step 3: Cross multiply
    109,652.17x = 151,328.79 × 87,176.64
  4. Step 4: Simplify right side
    109,652.17x = 13,192,335,447.47
  5. Step 5: Solve for x
    x = 13,192,335,447.47/109,652.17
  6. Step 6: Final answer
    x = 120,310.76

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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.