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Finding the Fourth Proportional to 101,363.40, 139,885.42 and 67,313.16

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Solution

The fourth proportional to 101,363.40, 139,885.42 and 67,313.16 is: 92,894.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,363.40 : 139,885.42 = 67,313.16 : x
  2. Step 2: Convert to fraction form
    101,363.40/139,885.42 = 67,313.16/x
  3. Step 3: Cross multiply
    101,363.40x = 139,885.42 × 67,313.16
  4. Step 4: Simplify right side
    101,363.40x = 9,416,129,658.13
  5. Step 5: Solve for x
    x = 9,416,129,658.13/101,363.40
  6. Step 6: Final answer
    x = 92,894.77

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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.