Home / 103,208.80-142,441.32-60,771.28

Finding the Fourth Proportional to 103,208.80, 142,441.32 and 60,771.28

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Solution

The fourth proportional to 103,208.80, 142,441.32 and 60,771.28 is: 83,872.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,208.80 : 142,441.32 = 60,771.28 : x
  2. Step 2: Convert to fraction form
    103,208.80/142,441.32 = 60,771.28/x
  3. Step 3: Cross multiply
    103,208.80x = 142,441.32 × 60,771.28
  4. Step 4: Simplify right side
    103,208.80x = 8,656,341,341.29
  5. Step 5: Solve for x
    x = 8,656,341,341.29/103,208.80
  6. Step 6: Final answer
    x = 83,872.12

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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.