Home / 112,085.10-168,127.65-28,979.10

Finding the Fourth Proportional to 112,085.10, 168,127.65 and 28,979.10

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Solution

The fourth proportional to 112,085.10, 168,127.65 and 28,979.10 is: 43,468.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,085.10 : 168,127.65 = 28,979.10 : x
  2. Step 2: Convert to fraction form
    112,085.10/168,127.65 = 28,979.10/x
  3. Step 3: Cross multiply
    112,085.10x = 168,127.65 × 28,979.10
  4. Step 4: Simplify right side
    112,085.10x = 4,872,187,982.12
  5. Step 5: Solve for x
    x = 4,872,187,982.12/112,085.10
  6. Step 6: Final answer
    x = 43,468.65

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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.