Home / 160,278.45-221,252.31-99,878.91

Finding the Fourth Proportional to 160,278.45, 221,252.31 and 99,878.91

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Solution

The fourth proportional to 160,278.45, 221,252.31 and 99,878.91 is: 137,875.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,278.45 : 221,252.31 = 99,878.91 : x
  2. Step 2: Convert to fraction form
    160,278.45/221,252.31 = 99,878.91/x
  3. Step 3: Cross multiply
    160,278.45x = 221,252.31 × 99,878.91
  4. Step 4: Simplify right side
    160,278.45x = 22,098,439,557.78
  5. Step 5: Solve for x
    x = 22,098,439,557.78/160,278.45
  6. Step 6: Final answer
    x = 137,875.30

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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.