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Finding the Fourth Proportional to 132,378.90, 182,673.18 and 75,019.20

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Solution

The fourth proportional to 132,378.90, 182,673.18 and 75,019.20 is: 103,521.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,378.90 : 182,673.18 = 75,019.20 : x
  2. Step 2: Convert to fraction form
    132,378.90/182,673.18 = 75,019.20/x
  3. Step 3: Cross multiply
    132,378.90x = 182,673.18 × 75,019.20
  4. Step 4: Simplify right side
    132,378.90x = 13,703,995,825.06
  5. Step 5: Solve for x
    x = 13,703,995,825.06/132,378.90
  6. Step 6: Final answer
    x = 103,521.00

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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.