Home / 142,223.69-196,266.65-77,692.14

Finding the Fourth Proportional to 142,223.69, 196,266.65 and 77,692.14

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Solution

The fourth proportional to 142,223.69, 196,266.65 and 77,692.14 is: 107,214.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,223.69 : 196,266.65 = 77,692.14 : x
  2. Step 2: Convert to fraction form
    142,223.69/196,266.65 = 77,692.14/x
  3. Step 3: Cross multiply
    142,223.69x = 196,266.65 × 77,692.14
  4. Step 4: Simplify right side
    142,223.69x = 15,248,375,660.67
  5. Step 5: Solve for x
    x = 15,248,375,660.67/142,223.69
  6. Step 6: Final answer
    x = 107,214.04

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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.