Home / 112,879.59-155,776.80-63,817.30

Finding the Fourth Proportional to 112,879.59, 155,776.80 and 63,817.30

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Solution

The fourth proportional to 112,879.59, 155,776.80 and 63,817.30 is: 88,069.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,879.59 : 155,776.80 = 63,817.30 : x
  2. Step 2: Convert to fraction form
    112,879.59/155,776.80 = 63,817.30/x
  3. Step 3: Cross multiply
    112,879.59x = 155,776.80 × 63,817.30
  4. Step 4: Simplify right side
    112,879.59x = 9,941,254,778.64
  5. Step 5: Solve for x
    x = 9,941,254,778.64/112,879.59
  6. Step 6: Final answer
    x = 88,069.55

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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.