Home / 164,927.10-247,390.65-81,983.10

Finding the Fourth Proportional to 164,927.10, 247,390.65 and 81,983.10

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Solution

The fourth proportional to 164,927.10, 247,390.65 and 81,983.10 is: 122,974.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,927.10 : 247,390.65 = 81,983.10 : x
  2. Step 2: Convert to fraction form
    164,927.10/247,390.65 = 81,983.10/x
  3. Step 3: Cross multiply
    164,927.10x = 247,390.65 × 81,983.10
  4. Step 4: Simplify right side
    164,927.10x = 20,281,852,398.02
  5. Step 5: Solve for x
    x = 20,281,852,398.02/164,927.10
  6. Step 6: Final answer
    x = 122,974.65

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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.