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Finding the Fourth Proportional to 132,774.86, 183,226.98 and 72,346

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Solution

The fourth proportional to 132,774.86, 183,226.98 and 72,346 is: 99,836.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,774.86 : 183,226.98 = 72,346 : x
  2. Step 2: Convert to fraction form
    132,774.86/183,226.98 = 72,346/x
  3. Step 3: Cross multiply
    132,774.86x = 183,226.98 × 72,346
  4. Step 4: Simplify right side
    132,774.86x = 13,255,739,095.08
  5. Step 5: Solve for x
    x = 13,255,739,095.08/132,774.86
  6. Step 6: Final answer
    x = 99,836.21

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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.