Home / 160,621.95-221,658.06-89,006.61

Finding the Fourth Proportional to 160,621.95, 221,658.06 and 89,006.61

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Solution

The fourth proportional to 160,621.95, 221,658.06 and 89,006.61 is: 122,828.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,621.95 : 221,658.06 = 89,006.61 : x
  2. Step 2: Convert to fraction form
    160,621.95/221,658.06 = 89,006.61/x
  3. Step 3: Cross multiply
    160,621.95x = 221,658.06 × 89,006.61
  4. Step 4: Simplify right side
    160,621.95x = 19,729,032,499.78
  5. Step 5: Solve for x
    x = 19,729,032,499.78/160,621.95
  6. Step 6: Final answer
    x = 122,828.99

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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.