Home / 112,318.32-168,476.80-28,078.08

Finding the Fourth Proportional to 112,318.32, 168,476.80 and 28,078.08

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Solution

The fourth proportional to 112,318.32, 168,476.80 and 28,078.08 is: 42,116.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,318.32 : 168,476.80 = 28,078.08 : x
  2. Step 2: Convert to fraction form
    112,318.32/168,476.80 = 28,078.08/x
  3. Step 3: Cross multiply
    112,318.32x = 168,476.80 × 28,078.08
  4. Step 4: Simplify right side
    112,318.32x = 4,730,505,068.54
  5. Step 5: Solve for x
    x = 4,730,505,068.54/112,318.32
  6. Step 6: Final answer
    x = 42,116.95

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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.