Home / 236,697.12-326,643.84-129,265.20

Finding the Fourth Proportional to 236,697.12, 326,643.84 and 129,265.20

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Solution

The fourth proportional to 236,697.12, 326,643.84 and 129,265.20 is: 178,386.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,697.12 : 326,643.84 = 129,265.20 : x
  2. Step 2: Convert to fraction form
    236,697.12/326,643.84 = 129,265.20/x
  3. Step 3: Cross multiply
    236,697.12x = 326,643.84 × 129,265.20
  4. Step 4: Simplify right side
    236,697.12x = 42,223,681,306.37
  5. Step 5: Solve for x
    x = 42,223,681,306.37/236,697.12
  6. Step 6: Final answer
    x = 178,386.97

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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.