Home / 103,139.44-142,325.04-60,692.20

Finding the Fourth Proportional to 103,139.44, 142,325.04 and 60,692.20

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Solution

The fourth proportional to 103,139.44, 142,325.04 and 60,692.20 is: 83,750.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,139.44 : 142,325.04 = 60,692.20 : x
  2. Step 2: Convert to fraction form
    103,139.44/142,325.04 = 60,692.20/x
  3. Step 3: Cross multiply
    103,139.44x = 142,325.04 × 60,692.20
  4. Step 4: Simplify right side
    103,139.44x = 8,638,019,792.69
  5. Step 5: Solve for x
    x = 8,638,019,792.69/103,139.44
  6. Step 6: Final answer
    x = 83,750.89

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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.