Home / 236,306.89-326,099.99-128,876.69

Finding the Fourth Proportional to 236,306.89, 326,099.99 and 128,876.69

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Solution

The fourth proportional to 236,306.89, 326,099.99 and 128,876.69 is: 177,847.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,306.89 : 326,099.99 = 128,876.69 : x
  2. Step 2: Convert to fraction form
    236,306.89/326,099.99 = 128,876.69/x
  3. Step 3: Cross multiply
    236,306.89x = 326,099.99 × 128,876.69
  4. Step 4: Simplify right side
    236,306.89x = 42,026,687,320.23
  5. Step 5: Solve for x
    x = 42,026,687,320.23/236,306.89
  6. Step 6: Final answer
    x = 177,847.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.