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Finding the Fourth Proportional to 112,570.88, 168,879.88 and 42,449.68

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Solution

The fourth proportional to 112,570.88, 168,879.88 and 42,449.68 is: 63,683.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,570.88 : 168,879.88 = 42,449.68 : x
  2. Step 2: Convert to fraction form
    112,570.88/168,879.88 = 42,449.68/x
  3. Step 3: Cross multiply
    112,570.88x = 168,879.88 × 42,449.68
  4. Step 4: Simplify right side
    112,570.88x = 7,168,896,864.44
  5. Step 5: Solve for x
    x = 7,168,896,864.44/112,570.88
  6. Step 6: Final answer
    x = 63,683.40

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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.