Home / 74,109.58-102,202.13-68,605.17

Finding the Fourth Proportional to 74,109.58, 102,202.13 and 68,605.17

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Solution

The fourth proportional to 74,109.58, 102,202.13 and 68,605.17 is: 94,611.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,109.58 : 102,202.13 = 68,605.17 : x
  2. Step 2: Convert to fraction form
    74,109.58/102,202.13 = 68,605.17/x
  3. Step 3: Cross multiply
    74,109.58x = 102,202.13 × 68,605.17
  4. Step 4: Simplify right side
    74,109.58x = 7,011,594,503.01
  5. Step 5: Solve for x
    x = 7,011,594,503.01/74,109.58
  6. Step 6: Final answer
    x = 94,611.18

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1.5x scale

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.