Home / 109,747.08-151,468.37-66,740.23

Finding the Fourth Proportional to 109,747.08, 151,468.37 and 66,740.23

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Solution

The fourth proportional to 109,747.08, 151,468.37 and 66,740.23 is: 92,112.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,747.08 : 151,468.37 = 66,740.23 : x
  2. Step 2: Convert to fraction form
    109,747.08/151,468.37 = 66,740.23/x
  3. Step 3: Cross multiply
    109,747.08x = 151,468.37 × 66,740.23
  4. Step 4: Simplify right side
    109,747.08x = 10,109,034,818.43
  5. Step 5: Solve for x
    x = 10,109,034,818.43/109,747.08
  6. Step 6: Final answer
    x = 92,112.11

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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.