Home / 112,445.80-155,174.83-61,458.54

Finding the Fourth Proportional to 112,445.80, 155,174.83 and 61,458.54

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Solution

The fourth proportional to 112,445.80, 155,174.83 and 61,458.54 is: 84,812.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,445.80 : 155,174.83 = 61,458.54 : x
  2. Step 2: Convert to fraction form
    112,445.80/155,174.83 = 61,458.54/x
  3. Step 3: Cross multiply
    112,445.80x = 155,174.83 × 61,458.54
  4. Step 4: Simplify right side
    112,445.80x = 9,536,818,496.55
  5. Step 5: Solve for x
    x = 9,536,818,496.55/112,445.80
  6. Step 6: Final answer
    x = 84,812.58

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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.