Home / 105,685.20-145,846.77-60,369.20

Finding the Fourth Proportional to 105,685.20, 145,846.77 and 60,369.20

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Solution

The fourth proportional to 105,685.20, 145,846.77 and 60,369.20 is: 83,310.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,685.20 : 145,846.77 = 60,369.20 : x
  2. Step 2: Convert to fraction form
    105,685.20/145,846.77 = 60,369.20/x
  3. Step 3: Cross multiply
    105,685.20x = 145,846.77 × 60,369.20
  4. Step 4: Simplify right side
    105,685.20x = 8,804,652,098.25
  5. Step 5: Solve for x
    x = 8,804,652,098.25/105,685.20
  6. Step 6: Final answer
    x = 83,310.17

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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.