Home / 134,971.20-202,456.80-90,734.40

Finding the Fourth Proportional to 134,971.20, 202,456.80 and 90,734.40

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Solution

The fourth proportional to 134,971.20, 202,456.80 and 90,734.40 is: 136,101.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,971.20 : 202,456.80 = 90,734.40 : x
  2. Step 2: Convert to fraction form
    134,971.20/202,456.80 = 90,734.40/x
  3. Step 3: Cross multiply
    134,971.20x = 202,456.80 × 90,734.40
  4. Step 4: Simplify right side
    134,971.20x = 18,369,796,273.92
  5. Step 5: Solve for x
    x = 18,369,796,273.92/134,971.20
  6. Step 6: Final answer
    x = 136,101.60

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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.