Home / 112,641.45-155,438.44-61,644.03

Finding the Fourth Proportional to 112,641.45, 155,438.44 and 61,644.03

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Solution

The fourth proportional to 112,641.45, 155,438.44 and 61,644.03 is: 85,065.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,641.45 : 155,438.44 = 61,644.03 : x
  2. Step 2: Convert to fraction form
    112,641.45/155,438.44 = 61,644.03/x
  3. Step 3: Cross multiply
    112,641.45x = 155,438.44 × 61,644.03
  4. Step 4: Simplify right side
    112,641.45x = 9,581,851,858.51
  5. Step 5: Solve for x
    x = 9,581,851,858.51/112,641.45
  6. Step 6: Final answer
    x = 85,065.06

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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.