Home / 129,488.08-194,232-40,748.32

Finding the Fourth Proportional to 129,488.08, 194,232 and 40,748.32

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Solution

The fourth proportional to 129,488.08, 194,232 and 40,748.32 is: 61,122.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,488.08 : 194,232 = 40,748.32 : x
  2. Step 2: Convert to fraction form
    129,488.08/194,232 = 40,748.32/x
  3. Step 3: Cross multiply
    129,488.08x = 194,232 × 40,748.32
  4. Step 4: Simplify right side
    129,488.08x = 7,914,627,690.24
  5. Step 5: Solve for x
    x = 7,914,627,690.24/129,488.08
  6. Step 6: Final answer
    x = 61,122.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.