Home / 142,712.25-214,082.48-52,778.56

Finding the Fourth Proportional to 142,712.25, 214,082.48 and 52,778.56

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Solution

The fourth proportional to 142,712.25, 214,082.48 and 52,778.56 is: 79,173.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,712.25 : 214,082.48 = 52,778.56 : x
  2. Step 2: Convert to fraction form
    142,712.25/214,082.48 = 52,778.56/x
  3. Step 3: Cross multiply
    142,712.25x = 214,082.48 × 52,778.56
  4. Step 4: Simplify right side
    142,712.25x = 11,298,963,681.32
  5. Step 5: Solve for x
    x = 11,298,963,681.32/142,712.25
  6. Step 6: Final answer
    x = 79,173.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.