Home / 132,039.20-198,117.12-53,307.20

Finding the Fourth Proportional to 132,039.20, 198,117.12 and 53,307.20

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Solution

The fourth proportional to 132,039.20, 198,117.12 and 53,307.20 is: 79,984.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,039.20 : 198,117.12 = 53,307.20 : x
  2. Step 2: Convert to fraction form
    132,039.20/198,117.12 = 53,307.20/x
  3. Step 3: Cross multiply
    132,039.20x = 198,117.12 × 53,307.20
  4. Step 4: Simplify right side
    132,039.20x = 10,561,068,939.26
  5. Step 5: Solve for x
    x = 10,561,068,939.26/132,039.20
  6. Step 6: Final answer
    x = 79,984.35

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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.