Home / 102,972.90-154,459.35-63,401.70

Finding the Fourth Proportional to 102,972.90, 154,459.35 and 63,401.70

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Solution

The fourth proportional to 102,972.90, 154,459.35 and 63,401.70 is: 95,102.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,972.90 : 154,459.35 = 63,401.70 : x
  2. Step 2: Convert to fraction form
    102,972.90/154,459.35 = 63,401.70/x
  3. Step 3: Cross multiply
    102,972.90x = 154,459.35 × 63,401.70
  4. Step 4: Simplify right side
    102,972.90x = 9,792,985,370.90
  5. Step 5: Solve for x
    x = 9,792,985,370.90/102,972.90
  6. Step 6: Final answer
    x = 95,102.55

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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.