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Finding the Fourth Proportional to 101,389.16, 152,215.22 and 67,869.63

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Solution

The fourth proportional to 101,389.16, 152,215.22 and 67,869.63 is: 101,892.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,389.16 : 152,215.22 = 67,869.63 : x
  2. Step 2: Convert to fraction form
    101,389.16/152,215.22 = 67,869.63/x
  3. Step 3: Cross multiply
    101,389.16x = 152,215.22 × 67,869.63
  4. Step 4: Simplify right side
    101,389.16x = 10,330,790,661.77
  5. Step 5: Solve for x
    x = 10,330,790,661.77/101,389.16
  6. Step 6: Final answer
    x = 101,892.46

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1.5x scale

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.