Home / 160,790.21-221,875.95-89,170.01

Finding the Fourth Proportional to 160,790.21, 221,875.95 and 89,170.01

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Solution

The fourth proportional to 160,790.21, 221,875.95 and 89,170.01 is: 123,046.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,790.21 : 221,875.95 = 89,170.01 : x
  2. Step 2: Convert to fraction form
    160,790.21/221,875.95 = 89,170.01/x
  3. Step 3: Cross multiply
    160,790.21x = 221,875.95 × 89,170.01
  4. Step 4: Simplify right side
    160,790.21x = 19,784,681,234.95
  5. Step 5: Solve for x
    x = 19,784,681,234.95/160,790.21
  6. Step 6: Final answer
    x = 123,046.55

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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.