Home / 129,567.40-194,642.70-126,068.20

Finding the Fourth Proportional to 129,567.40, 194,642.70 and 126,068.20

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Solution

The fourth proportional to 129,567.40, 194,642.70 and 126,068.20 is: 189,386.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,567.40 : 194,642.70 = 126,068.20 : x
  2. Step 2: Convert to fraction form
    129,567.40/194,642.70 = 126,068.20/x
  3. Step 3: Cross multiply
    129,567.40x = 194,642.70 × 126,068.20
  4. Step 4: Simplify right side
    129,567.40x = 24,538,254,832.14
  5. Step 5: Solve for x
    x = 24,538,254,832.14/129,567.40
  6. Step 6: Final answer
    x = 189,386.02

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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.