Home / 106,775.12-147,364.36-61,452.20

Finding the Fourth Proportional to 106,775.12, 147,364.36 and 61,452.20

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Solution

The fourth proportional to 106,775.12, 147,364.36 and 61,452.20 is: 84,812.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,775.12 : 147,364.36 = 61,452.20 : x
  2. Step 2: Convert to fraction form
    106,775.12/147,364.36 = 61,452.20/x
  3. Step 3: Cross multiply
    106,775.12x = 147,364.36 × 61,452.20
  4. Step 4: Simplify right side
    106,775.12x = 9,055,864,123.59
  5. Step 5: Solve for x
    x = 9,055,864,123.59/106,775.12
  6. Step 6: Final answer
    x = 84,812.49

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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.