Home / 160,449.31-221,411.61-87,838.30

Finding the Fourth Proportional to 160,449.31, 221,411.61 and 87,838.30

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Solution

The fourth proportional to 160,449.31, 221,411.61 and 87,838.30 is: 121,212.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,449.31 : 221,411.61 = 87,838.30 : x
  2. Step 2: Convert to fraction form
    160,449.31/221,411.61 = 87,838.30/x
  3. Step 3: Cross multiply
    160,449.31x = 221,411.61 × 87,838.30
  4. Step 4: Simplify right side
    160,449.31x = 19,448,419,422.66
  5. Step 5: Solve for x
    x = 19,448,419,422.66/160,449.31
  6. Step 6: Final answer
    x = 121,212.23

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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.