Home / 105,729.03-145,892.61-60,409.95

Finding the Fourth Proportional to 105,729.03, 145,892.61 and 60,409.95

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Solution

The fourth proportional to 105,729.03, 145,892.61 and 60,409.95 is: 83,358.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,729.03 : 145,892.61 = 60,409.95 : x
  2. Step 2: Convert to fraction form
    105,729.03/145,892.61 = 60,409.95/x
  3. Step 3: Cross multiply
    105,729.03x = 145,892.61 × 60,409.95
  4. Step 4: Simplify right side
    105,729.03x = 8,813,364,728.37
  5. Step 5: Solve for x
    x = 8,813,364,728.37/105,729.03
  6. Step 6: Final answer
    x = 83,358.04

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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.