Home / 112,380.40-168,519.80-59,778.64

Finding the Fourth Proportional to 112,380.40, 168,519.80 and 59,778.64

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Solution

The fourth proportional to 112,380.40, 168,519.80 and 59,778.64 is: 89,640.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,380.40 : 168,519.80 = 59,778.64 : x
  2. Step 2: Convert to fraction form
    112,380.40/168,519.80 = 59,778.64/x
  3. Step 3: Cross multiply
    112,380.40x = 168,519.80 × 59,778.64
  4. Step 4: Simplify right side
    112,380.40x = 10,073,884,457.07
  5. Step 5: Solve for x
    x = 10,073,884,457.07/112,380.40
  6. Step 6: Final answer
    x = 89,640.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.