Home / 103,046.76-154,115.82-89,705.16

Finding the Fourth Proportional to 103,046.76, 154,115.82 and 89,705.16

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Solution

The fourth proportional to 103,046.76, 154,115.82 and 89,705.16 is: 134,162.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,046.76 : 154,115.82 = 89,705.16 : x
  2. Step 2: Convert to fraction form
    103,046.76/154,115.82 = 89,705.16/x
  3. Step 3: Cross multiply
    103,046.76x = 154,115.82 × 89,705.16
  4. Step 4: Simplify right side
    103,046.76x = 13,824,984,291.63
  5. Step 5: Solve for x
    x = 13,824,984,291.63/103,046.76
  6. Step 6: Final answer
    x = 134,162.24

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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.