Home / 106,931.22-147,571.92-61,608.38

Finding the Fourth Proportional to 106,931.22, 147,571.92 and 61,608.38

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Solution

The fourth proportional to 106,931.22, 147,571.92 and 61,608.38 is: 85,023.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,931.22 : 147,571.92 = 61,608.38 : x
  2. Step 2: Convert to fraction form
    106,931.22/147,571.92 = 61,608.38/x
  3. Step 3: Cross multiply
    106,931.22x = 147,571.92 × 61,608.38
  4. Step 4: Simplify right side
    106,931.22x = 9,091,666,186.83
  5. Step 5: Solve for x
    x = 9,091,666,186.83/106,931.22
  6. Step 6: Final answer
    x = 85,023.50

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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.