Home / 236,721.75-326,676-129,292.04

Finding the Fourth Proportional to 236,721.75, 326,676 and 129,292.04

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Solution

The fourth proportional to 236,721.75, 326,676 and 129,292.04 is: 178,423.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,721.75 : 326,676 = 129,292.04 : x
  2. Step 2: Convert to fraction form
    236,721.75/326,676 = 129,292.04/x
  3. Step 3: Cross multiply
    236,721.75x = 326,676 × 129,292.04
  4. Step 4: Simplify right side
    236,721.75x = 42,236,604,825.66
  5. Step 5: Solve for x
    x = 42,236,604,825.66/236,721.75
  6. Step 6: Final answer
    x = 178,423.00

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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.