Home / 236,859.15-326,851.68-129,407.79

Finding the Fourth Proportional to 236,859.15, 326,851.68 and 129,407.79

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Solution

The fourth proportional to 236,859.15, 326,851.68 and 129,407.79 is: 178,575.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,859.15 : 326,851.68 = 129,407.79 : x
  2. Step 2: Convert to fraction form
    236,859.15/326,851.68 = 129,407.79/x
  3. Step 3: Cross multiply
    236,859.15x = 326,851.68 × 129,407.79
  4. Step 4: Simplify right side
    236,859.15x = 42,297,153,566.59
  5. Step 5: Solve for x
    x = 42,297,153,566.59/236,859.15
  6. Step 6: Final answer
    x = 178,575.13

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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.