Home / 132,603.79-182,997.12-72,178.36

Finding the Fourth Proportional to 132,603.79, 182,997.12 and 72,178.36

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Solution

The fourth proportional to 132,603.79, 182,997.12 and 72,178.36 is: 99,608.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,603.79 : 182,997.12 = 72,178.36 : x
  2. Step 2: Convert to fraction form
    132,603.79/182,997.12 = 72,178.36/x
  3. Step 3: Cross multiply
    132,603.79x = 182,997.12 × 72,178.36
  4. Step 4: Simplify right side
    132,603.79x = 13,208,432,006.32
  5. Step 5: Solve for x
    x = 13,208,432,006.32/132,603.79
  6. Step 6: Final answer
    x = 99,608.25

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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.