Home / 112,042.40-168,063.60-72,384.80

Finding the Fourth Proportional to 112,042.40, 168,063.60 and 72,384.80

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Solution

The fourth proportional to 112,042.40, 168,063.60 and 72,384.80 is: 108,577.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,042.40 : 168,063.60 = 72,384.80 : x
  2. Step 2: Convert to fraction form
    112,042.40/168,063.60 = 72,384.80/x
  3. Step 3: Cross multiply
    112,042.40x = 168,063.60 × 72,384.80
  4. Step 4: Simplify right side
    112,042.40x = 12,165,250,073.28
  5. Step 5: Solve for x
    x = 12,165,250,073.28/112,042.40
  6. Step 6: Final answer
    x = 108,577.20

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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.