Home / 236,480.55-326,350.10-129,057.50

Finding the Fourth Proportional to 236,480.55, 326,350.10 and 129,057.50

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Solution

The fourth proportional to 236,480.55, 326,350.10 and 129,057.50 is: 178,103.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,480.55 : 326,350.10 = 129,057.50 : x
  2. Step 2: Convert to fraction form
    236,480.55/326,350.10 = 129,057.50/x
  3. Step 3: Cross multiply
    236,480.55x = 326,350.10 × 129,057.50
  4. Step 4: Simplify right side
    236,480.55x = 42,117,925,753.71
  5. Step 5: Solve for x
    x = 42,117,925,753.71/236,480.55
  6. Step 6: Final answer
    x = 178,103.13

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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.