Home / 104,822.10-157,014.45-78,490.62

Finding the Fourth Proportional to 104,822.10, 157,014.45 and 78,490.62

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Solution

The fourth proportional to 104,822.10, 157,014.45 and 78,490.62 is: 117,572.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,822.10 : 157,014.45 = 78,490.62 : x
  2. Step 2: Convert to fraction form
    104,822.10/157,014.45 = 78,490.62/x
  3. Step 3: Cross multiply
    104,822.10x = 157,014.45 × 78,490.62
  4. Step 4: Simplify right side
    104,822.10x = 12,324,161,529.46
  5. Step 5: Solve for x
    x = 12,324,161,529.46/104,822.10
  6. Step 6: Final answer
    x = 117,572.17

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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.