Home / 88,470.96-122,209.36-70,690.64

Finding the Fourth Proportional to 88,470.96, 122,209.36 and 70,690.64

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Solution

The fourth proportional to 88,470.96, 122,209.36 and 70,690.64 is: 97,648.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,470.96 : 122,209.36 = 70,690.64 : x
  2. Step 2: Convert to fraction form
    88,470.96/122,209.36 = 70,690.64/x
  3. Step 3: Cross multiply
    88,470.96x = 122,209.36 × 70,690.64
  4. Step 4: Simplify right side
    88,470.96x = 8,639,057,872.39
  5. Step 5: Solve for x
    x = 8,639,057,872.39/88,470.96
  6. Step 6: Final answer
    x = 97,648.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.