Home / 112,675.07-155,493.44-61,686.95

Finding the Fourth Proportional to 112,675.07, 155,493.44 and 61,686.95

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Solution

The fourth proportional to 112,675.07, 155,493.44 and 61,686.95 is: 85,129.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,675.07 : 155,493.44 = 61,686.95 : x
  2. Step 2: Convert to fraction form
    112,675.07/155,493.44 = 61,686.95/x
  3. Step 3: Cross multiply
    112,675.07x = 155,493.44 × 61,686.95
  4. Step 4: Simplify right side
    112,675.07x = 9,591,916,601.56
  5. Step 5: Solve for x
    x = 9,591,916,601.56/112,675.07
  6. Step 6: Final answer
    x = 85,129.00

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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.