Home / 160,342.57-221,340.90-99,943.30

Finding the Fourth Proportional to 160,342.57, 221,340.90 and 99,943.30

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Solution

The fourth proportional to 160,342.57, 221,340.90 and 99,943.30 is: 137,964.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,342.57 : 221,340.90 = 99,943.30 : x
  2. Step 2: Convert to fraction form
    160,342.57/221,340.90 = 99,943.30/x
  3. Step 3: Cross multiply
    160,342.57x = 221,340.90 × 99,943.30
  4. Step 4: Simplify right side
    160,342.57x = 22,121,539,970.97
  5. Step 5: Solve for x
    x = 22,121,539,970.97/160,342.57
  6. Step 6: Final answer
    x = 137,964.23

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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.