Home / 231,001.70-346,502.55-81,240.80

Finding the Fourth Proportional to 231,001.70, 346,502.55 and 81,240.80

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Solution

The fourth proportional to 231,001.70, 346,502.55 and 81,240.80 is: 121,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,001.70 : 346,502.55 = 81,240.80 : x
  2. Step 2: Convert to fraction form
    231,001.70/346,502.55 = 81,240.80/x
  3. Step 3: Cross multiply
    231,001.70x = 346,502.55 × 81,240.80
  4. Step 4: Simplify right side
    231,001.70x = 28,150,144,364.04
  5. Step 5: Solve for x
    x = 28,150,144,364.04/231,001.70
  6. Step 6: Final answer
    x = 121,861.20

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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.