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Finding the Fourth Proportional to 122,330.77, 168,807.78 and 67,885.86

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Solution

The fourth proportional to 122,330.77, 168,807.78 and 67,885.86 is: 93,677.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,330.77 : 168,807.78 = 67,885.86 : x
  2. Step 2: Convert to fraction form
    122,330.77/168,807.78 = 67,885.86/x
  3. Step 3: Cross multiply
    122,330.77x = 168,807.78 × 67,885.86
  4. Step 4: Simplify right side
    122,330.77x = 11,459,661,319.99
  5. Step 5: Solve for x
    x = 11,459,661,319.99/122,330.77
  6. Step 6: Final answer
    x = 93,677.67

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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.