Home / 236,910.15-326,931.15-129,480.95

Finding the Fourth Proportional to 236,910.15, 326,931.15 and 129,480.95

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Solution

The fourth proportional to 236,910.15, 326,931.15 and 129,480.95 is: 178,681.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,910.15 : 326,931.15 = 129,480.95 : x
  2. Step 2: Convert to fraction form
    236,910.15/326,931.15 = 129,480.95/x
  3. Step 3: Cross multiply
    236,910.15x = 326,931.15 × 129,480.95
  4. Step 4: Simplify right side
    236,910.15x = 42,331,353,766.38
  5. Step 5: Solve for x
    x = 42,331,353,766.38/236,910.15
  6. Step 6: Final answer
    x = 178,681.05

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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.