Home / 112,310.57-168,465.18-28,070.31

Finding the Fourth Proportional to 112,310.57, 168,465.18 and 28,070.31

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Solution

The fourth proportional to 112,310.57, 168,465.18 and 28,070.31 is: 42,105.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,310.57 : 168,465.18 = 28,070.31 : x
  2. Step 2: Convert to fraction form
    112,310.57/168,465.18 = 28,070.31/x
  3. Step 3: Cross multiply
    112,310.57x = 168,465.18 × 28,070.31
  4. Step 4: Simplify right side
    112,310.57x = 4,728,869,686.45
  5. Step 5: Solve for x
    x = 4,728,869,686.45/112,310.57
  6. Step 6: Final answer
    x = 42,105.30

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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.