Home / 121,250.20-181,875.30-83,925.40

Finding the Fourth Proportional to 121,250.20, 181,875.30 and 83,925.40

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Solution

The fourth proportional to 121,250.20, 181,875.30 and 83,925.40 is: 125,888.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,250.20 : 181,875.30 = 83,925.40 : x
  2. Step 2: Convert to fraction form
    121,250.20/181,875.30 = 83,925.40/x
  3. Step 3: Cross multiply
    121,250.20x = 181,875.30 × 83,925.40
  4. Step 4: Simplify right side
    121,250.20x = 15,263,957,302.62
  5. Step 5: Solve for x
    x = 15,263,957,302.62/121,250.20
  6. Step 6: Final answer
    x = 125,888.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.