Home / 153,962.20-230,943.30-131,411.80

Finding the Fourth Proportional to 153,962.20, 230,943.30 and 131,411.80

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Solution

The fourth proportional to 153,962.20, 230,943.30 and 131,411.80 is: 197,117.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,962.20 : 230,943.30 = 131,411.80 : x
  2. Step 2: Convert to fraction form
    153,962.20/230,943.30 = 131,411.80/x
  3. Step 3: Cross multiply
    153,962.20x = 230,943.30 × 131,411.80
  4. Step 4: Simplify right side
    153,962.20x = 30,348,674,750.94
  5. Step 5: Solve for x
    x = 30,348,674,750.94/153,962.20
  6. Step 6: Final answer
    x = 197,117.70

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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.