Home / 261,990.12-392,656.36-112,054.13

Finding the Fourth Proportional to 261,990.12, 392,656.36 and 112,054.13

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Solution

The fourth proportional to 261,990.12, 392,656.36 and 112,054.13 is: 167,940.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,990.12 : 392,656.36 = 112,054.13 : x
  2. Step 2: Convert to fraction form
    261,990.12/392,656.36 = 112,054.13/x
  3. Step 3: Cross multiply
    261,990.12x = 392,656.36 × 112,054.13
  4. Step 4: Simplify right side
    261,990.12x = 43,998,766,808.77
  5. Step 5: Solve for x
    x = 43,998,766,808.77/261,990.12
  6. Step 6: Final answer
    x = 167,940.56

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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.