Home / 131,421.70-197,132.55-61,308.10

Finding the Fourth Proportional to 131,421.70, 197,132.55 and 61,308.10

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Solution

The fourth proportional to 131,421.70, 197,132.55 and 61,308.10 is: 91,962.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,421.70 : 197,132.55 = 61,308.10 : x
  2. Step 2: Convert to fraction form
    131,421.70/197,132.55 = 61,308.10/x
  3. Step 3: Cross multiply
    131,421.70x = 197,132.55 × 61,308.10
  4. Step 4: Simplify right side
    131,421.70x = 12,085,822,088.66
  5. Step 5: Solve for x
    x = 12,085,822,088.66/131,421.70
  6. Step 6: Final answer
    x = 91,962.15

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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.