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Finding the Fourth Proportional to 112,298.88, 168,507.36 and 45,788.16

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Solution

The fourth proportional to 112,298.88, 168,507.36 and 45,788.16 is: 68,706.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,298.88 : 168,507.36 = 45,788.16 : x
  2. Step 2: Convert to fraction form
    112,298.88/168,507.36 = 45,788.16/x
  3. Step 3: Cross multiply
    112,298.88x = 168,507.36 × 45,788.16
  4. Step 4: Simplify right side
    112,298.88x = 7,715,641,960.86
  5. Step 5: Solve for x
    x = 7,715,641,960.86/112,298.88
  6. Step 6: Final answer
    x = 68,706.31

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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.