Home / 236,712.16-326,650.48-129,261.21

Finding the Fourth Proportional to 236,712.16, 326,650.48 and 129,261.21

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Solution

The fourth proportional to 236,712.16, 326,650.48 and 129,261.21 is: 178,373.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,712.16 : 326,650.48 = 129,261.21 : x
  2. Step 2: Convert to fraction form
    236,712.16/326,650.48 = 129,261.21/x
  3. Step 3: Cross multiply
    236,712.16x = 326,650.48 × 129,261.21
  4. Step 4: Simplify right side
    236,712.16x = 42,223,236,291.88
  5. Step 5: Solve for x
    x = 42,223,236,291.88/236,712.16
  6. Step 6: Final answer
    x = 178,373.75

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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.