Home / 105,600.16-145,687.44-67,895.20

Finding the Fourth Proportional to 105,600.16, 145,687.44 and 67,895.20

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Solution

The fourth proportional to 105,600.16, 145,687.44 and 67,895.20 is: 93,669.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,600.16 : 145,687.44 = 67,895.20 : x
  2. Step 2: Convert to fraction form
    105,600.16/145,687.44 = 67,895.20/x
  3. Step 3: Cross multiply
    105,600.16x = 145,687.44 × 67,895.20
  4. Step 4: Simplify right side
    105,600.16x = 9,891,477,876.29
  5. Step 5: Solve for x
    x = 9,891,477,876.29/105,600.16
  6. Step 6: Final answer
    x = 93,669.16

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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.