Home / 121,125.20-181,687.80-94,852.40

Finding the Fourth Proportional to 121,125.20, 181,687.80 and 94,852.40

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Solution

The fourth proportional to 121,125.20, 181,687.80 and 94,852.40 is: 142,278.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,125.20 : 181,687.80 = 94,852.40 : x
  2. Step 2: Convert to fraction form
    121,125.20/181,687.80 = 94,852.40/x
  3. Step 3: Cross multiply
    121,125.20x = 181,687.80 × 94,852.40
  4. Step 4: Simplify right side
    121,125.20x = 17,233,523,880.72
  5. Step 5: Solve for x
    x = 17,233,523,880.72/121,125.20
  6. Step 6: Final answer
    x = 142,278.60

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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.