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Finding the Fourth Proportional to 132,630.51, 183,024.50 and 72,199.89

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Solution

The fourth proportional to 132,630.51, 183,024.50 and 72,199.89 is: 99,632.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,630.51 : 183,024.50 = 72,199.89 : x
  2. Step 2: Convert to fraction form
    132,630.51/183,024.50 = 72,199.89/x
  3. Step 3: Cross multiply
    132,630.51x = 183,024.50 × 72,199.89
  4. Step 4: Simplify right side
    132,630.51x = 13,214,348,406.31
  5. Step 5: Solve for x
    x = 13,214,348,406.31/132,630.51
  6. Step 6: Final answer
    x = 99,632.80

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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.