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Finding the Fourth Proportional to 101,360.40, 139,881.27 and 67,310.16

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Solution

The fourth proportional to 101,360.40, 139,881.27 and 67,310.16 is: 92,890.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,360.40 : 139,881.27 = 67,310.16 : x
  2. Step 2: Convert to fraction form
    101,360.40/139,881.27 = 67,310.16/x
  3. Step 3: Cross multiply
    101,360.40x = 139,881.27 × 67,310.16
  4. Step 4: Simplify right side
    101,360.40x = 9,415,430,664.70
  5. Step 5: Solve for x
    x = 9,415,430,664.70/101,360.40
  6. Step 6: Final answer
    x = 92,890.62

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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.