Home / 160,340.07-221,337.45-99,940.80

Finding the Fourth Proportional to 160,340.07, 221,337.45 and 99,940.80

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Solution

The fourth proportional to 160,340.07, 221,337.45 and 99,940.80 is: 137,960.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,340.07 : 221,337.45 = 99,940.80 : x
  2. Step 2: Convert to fraction form
    160,340.07/221,337.45 = 99,940.80/x
  3. Step 3: Cross multiply
    160,340.07x = 221,337.45 × 99,940.80
  4. Step 4: Simplify right side
    160,340.07x = 22,120,641,822.96
  5. Step 5: Solve for x
    x = 22,120,641,822.96/160,340.07
  6. Step 6: Final answer
    x = 137,960.78

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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.