Home / 236,643.18-326,580.87-129,223.20

Finding the Fourth Proportional to 236,643.18, 326,580.87 and 129,223.20

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Solution

The fourth proportional to 236,643.18, 326,580.87 and 129,223.20 is: 178,335.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,643.18 : 326,580.87 = 129,223.20 : x
  2. Step 2: Convert to fraction form
    236,643.18/326,580.87 = 129,223.20/x
  3. Step 3: Cross multiply
    236,643.18x = 326,580.87 × 129,223.20
  4. Step 4: Simplify right side
    236,643.18x = 42,201,825,080.18
  5. Step 5: Solve for x
    x = 42,201,825,080.18/236,643.18
  6. Step 6: Final answer
    x = 178,335.27

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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.