Home / 112,319.32-168,478.30-28,079.08

Finding the Fourth Proportional to 112,319.32, 168,478.30 and 28,079.08

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Solution

The fourth proportional to 112,319.32, 168,478.30 and 28,079.08 is: 42,118.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,319.32 : 168,478.30 = 28,079.08 : x
  2. Step 2: Convert to fraction form
    112,319.32/168,478.30 = 28,079.08/x
  3. Step 3: Cross multiply
    112,319.32x = 168,478.30 × 28,079.08
  4. Step 4: Simplify right side
    112,319.32x = 4,730,715,663.96
  5. Step 5: Solve for x
    x = 4,730,715,663.96/112,319.32
  6. Step 6: Final answer
    x = 42,118.45

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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.