Home / 112,418.80-168,628.20-29,312.80

Finding the Fourth Proportional to 112,418.80, 168,628.20 and 29,312.80

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Solution

The fourth proportional to 112,418.80, 168,628.20 and 29,312.80 is: 43,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,418.80 : 168,628.20 = 29,312.80 : x
  2. Step 2: Convert to fraction form
    112,418.80/168,628.20 = 29,312.80/x
  3. Step 3: Cross multiply
    112,418.80x = 168,628.20 × 29,312.80
  4. Step 4: Simplify right side
    112,418.80x = 4,942,964,700.96
  5. Step 5: Solve for x
    x = 4,942,964,700.96/112,418.80
  6. Step 6: Final answer
    x = 43,969.20

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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.