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Finding the Fourth Proportional to 100,010.02, 138,015.30 and 67,754.50

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Solution

The fourth proportional to 100,010.02, 138,015.30 and 67,754.50 is: 93,502.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,010.02 : 138,015.30 = 67,754.50 : x
  2. Step 2: Convert to fraction form
    100,010.02/138,015.30 = 67,754.50/x
  3. Step 3: Cross multiply
    100,010.02x = 138,015.30 × 67,754.50
  4. Step 4: Simplify right side
    100,010.02x = 9,351,157,643.85
  5. Step 5: Solve for x
    x = 9,351,157,643.85/100,010.02
  6. Step 6: Final answer
    x = 93,502.21

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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.