Home / 112,681.37-155,494.12-61,684.23

Finding the Fourth Proportional to 112,681.37, 155,494.12 and 61,684.23

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Solution

The fourth proportional to 112,681.37, 155,494.12 and 61,684.23 is: 85,120.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,681.37 : 155,494.12 = 61,684.23 : x
  2. Step 2: Convert to fraction form
    112,681.37/155,494.12 = 61,684.23/x
  3. Step 3: Cross multiply
    112,681.37x = 155,494.12 × 61,684.23
  4. Step 4: Simplify right side
    112,681.37x = 9,591,534,907.52
  5. Step 5: Solve for x
    x = 9,591,534,907.52/112,681.37
  6. Step 6: Final answer
    x = 85,120.86

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1.5x scale

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.