Home / 236,378.86-326,202.15-128,948.13

Finding the Fourth Proportional to 236,378.86, 326,202.15 and 128,948.13

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Solution

The fourth proportional to 236,378.86, 326,202.15 and 128,948.13 is: 177,948.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,378.86 : 326,202.15 = 128,948.13 : x
  2. Step 2: Convert to fraction form
    236,378.86/326,202.15 = 128,948.13/x
  3. Step 3: Cross multiply
    236,378.86x = 326,202.15 × 128,948.13
  4. Step 4: Simplify right side
    236,378.86x = 42,063,157,244.48
  5. Step 5: Solve for x
    x = 42,063,157,244.48/236,378.86
  6. Step 6: Final answer
    x = 177,948.05

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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.