Home / 236,820.47-326,816.94-129,397.16

Finding the Fourth Proportional to 236,820.47, 326,816.94 and 129,397.16

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Solution

The fourth proportional to 236,820.47, 326,816.94 and 129,397.16 is: 178,570.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,820.47 : 326,816.94 = 129,397.16 : x
  2. Step 2: Convert to fraction form
    236,820.47/326,816.94 = 129,397.16/x
  3. Step 3: Cross multiply
    236,820.47x = 326,816.94 × 129,397.16
  4. Step 4: Simplify right side
    236,820.47x = 42,289,185,178.17
  5. Step 5: Solve for x
    x = 42,289,185,178.17/236,820.47
  6. Step 6: Final answer
    x = 178,570.65

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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.