Home / 103,102.80-142,295.04-60,665.28

Finding the Fourth Proportional to 103,102.80, 142,295.04 and 60,665.28

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Solution

The fourth proportional to 103,102.80, 142,295.04 and 60,665.28 is: 83,725.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,102.80 : 142,295.04 = 60,665.28 : x
  2. Step 2: Convert to fraction form
    103,102.80/142,295.04 = 60,665.28/x
  3. Step 3: Cross multiply
    103,102.80x = 142,295.04 × 60,665.28
  4. Step 4: Simplify right side
    103,102.80x = 8,632,368,444.21
  5. Step 5: Solve for x
    x = 8,632,368,444.21/103,102.80
  6. Step 6: Final answer
    x = 83,725.84

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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.