Home / 112,617.42-155,539.60-76,745.16

Finding the Fourth Proportional to 112,617.42, 155,539.60 and 76,745.16

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Solution

The fourth proportional to 112,617.42, 155,539.60 and 76,745.16 is: 105,995.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,617.42 : 155,539.60 = 76,745.16 : x
  2. Step 2: Convert to fraction form
    112,617.42/155,539.60 = 76,745.16/x
  3. Step 3: Cross multiply
    112,617.42x = 155,539.60 × 76,745.16
  4. Step 4: Simplify right side
    112,617.42x = 11,936,911,488.34
  5. Step 5: Solve for x
    x = 11,936,911,488.34/112,617.42
  6. Step 6: Final answer
    x = 105,995.25

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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.