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Finding the Fourth Proportional to 107,220, 160,808.08 and 40,637.20

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Solution

The fourth proportional to 107,220, 160,808.08 and 40,637.20 is: 60,947.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,220 : 160,808.08 = 40,637.20 : x
  2. Step 2: Convert to fraction form
    107,220/160,808.08 = 40,637.20/x
  3. Step 3: Cross multiply
    107,220x = 160,808.08 × 40,637.20
  4. Step 4: Simplify right side
    107,220x = 6,534,790,108.58
  5. Step 5: Solve for x
    x = 6,534,790,108.58/107,220
  6. Step 6: Final answer
    x = 60,947.49

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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.