Home / 103,244.24-142,557.32-79,333.20

Finding the Fourth Proportional to 103,244.24, 142,557.32 and 79,333.20

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Solution

The fourth proportional to 103,244.24, 142,557.32 and 79,333.20 is: 109,541.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,244.24 : 142,557.32 = 79,333.20 : x
  2. Step 2: Convert to fraction form
    103,244.24/142,557.32 = 79,333.20/x
  3. Step 3: Cross multiply
    103,244.24x = 142,557.32 × 79,333.20
  4. Step 4: Simplify right side
    103,244.24x = 11,309,528,379.02
  5. Step 5: Solve for x
    x = 11,309,528,379.02/103,244.24
  6. Step 6: Final answer
    x = 109,541.49

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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.