Home / 112,918.38-155,818.89-61,922.94

Finding the Fourth Proportional to 112,918.38, 155,818.89 and 61,922.94

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Solution

The fourth proportional to 112,918.38, 155,818.89 and 61,922.94 is: 85,449.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,918.38 : 155,818.89 = 61,922.94 : x
  2. Step 2: Convert to fraction form
    112,918.38/155,818.89 = 61,922.94/x
  3. Step 3: Cross multiply
    112,918.38x = 155,818.89 × 61,922.94
  4. Step 4: Simplify right side
    112,918.38x = 9,648,763,776.34
  5. Step 5: Solve for x
    x = 9,648,763,776.34/112,918.38
  6. Step 6: Final answer
    x = 85,449.01

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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.