Home / 123,280.83-170,125.88-68,833.84

Finding the Fourth Proportional to 123,280.83, 170,125.88 and 68,833.84

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Solution

The fourth proportional to 123,280.83, 170,125.88 and 68,833.84 is: 94,989.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,280.83 : 170,125.88 = 68,833.84 : x
  2. Step 2: Convert to fraction form
    123,280.83/170,125.88 = 68,833.84/x
  3. Step 3: Cross multiply
    123,280.83x = 170,125.88 × 68,833.84
  4. Step 4: Simplify right side
    123,280.83x = 11,710,417,603.78
  5. Step 5: Solve for x
    x = 11,710,417,603.78/123,280.83
  6. Step 6: Final answer
    x = 94,989.77

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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.