Home / 103,063.18-142,224.69-57,743.05

Finding the Fourth Proportional to 103,063.18, 142,224.69 and 57,743.05

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Solution

The fourth proportional to 103,063.18, 142,224.69 and 57,743.05 is: 79,684.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,063.18 : 142,224.69 = 57,743.05 : x
  2. Step 2: Convert to fraction form
    103,063.18/142,224.69 = 57,743.05/x
  3. Step 3: Cross multiply
    103,063.18x = 142,224.69 × 57,743.05
  4. Step 4: Simplify right side
    103,063.18x = 8,212,487,385.90
  5. Step 5: Solve for x
    x = 8,212,487,385.90/103,063.18
  6. Step 6: Final answer
    x = 79,684.01

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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.