Home / 133,031.40-199,547.10-131,281.80

Finding the Fourth Proportional to 133,031.40, 199,547.10 and 131,281.80

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Solution

The fourth proportional to 133,031.40, 199,547.10 and 131,281.80 is: 196,922.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,031.40 : 199,547.10 = 131,281.80 : x
  2. Step 2: Convert to fraction form
    133,031.40/199,547.10 = 131,281.80/x
  3. Step 3: Cross multiply
    133,031.40x = 199,547.10 × 131,281.80
  4. Step 4: Simplify right side
    133,031.40x = 26,196,902,472.78
  5. Step 5: Solve for x
    x = 26,196,902,472.78/133,031.40
  6. Step 6: Final answer
    x = 196,922.70

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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.