Home / 163,560.09-225,713.04-90,961.38

Finding the Fourth Proportional to 163,560.09, 225,713.04 and 90,961.38

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Solution

The fourth proportional to 163,560.09, 225,713.04 and 90,961.38 is: 125,526.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,560.09 : 225,713.04 = 90,961.38 : x
  2. Step 2: Convert to fraction form
    163,560.09/225,713.04 = 90,961.38/x
  3. Step 3: Cross multiply
    163,560.09x = 225,713.04 × 90,961.38
  4. Step 4: Simplify right side
    163,560.09x = 20,531,169,602.40
  5. Step 5: Solve for x
    x = 20,531,169,602.40/163,560.09
  6. Step 6: Final answer
    x = 125,526.77

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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.