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Finding the Fourth Proportional to 122,670.30, 183,875.85 and 69,966.30

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Solution

The fourth proportional to 122,670.30, 183,875.85 and 69,966.30 is: 104,875.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,670.30 : 183,875.85 = 69,966.30 : x
  2. Step 2: Convert to fraction form
    122,670.30/183,875.85 = 69,966.30/x
  3. Step 3: Cross multiply
    122,670.30x = 183,875.85 × 69,966.30
  4. Step 4: Simplify right side
    122,670.30x = 12,865,112,883.86
  5. Step 5: Solve for x
    x = 12,865,112,883.86/122,670.30
  6. Step 6: Final answer
    x = 104,875.53

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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.