Home / 103,420.14-154,998.96-53,490.90

Finding the Fourth Proportional to 103,420.14, 154,998.96 and 53,490.90

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Solution

The fourth proportional to 103,420.14, 154,998.96 and 53,490.90 is: 80,168.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,420.14 : 154,998.96 = 53,490.90 : x
  2. Step 2: Convert to fraction form
    103,420.14/154,998.96 = 53,490.90/x
  3. Step 3: Cross multiply
    103,420.14x = 154,998.96 × 53,490.90
  4. Step 4: Simplify right side
    103,420.14x = 8,291,033,869.46
  5. Step 5: Solve for x
    x = 8,291,033,869.46/103,420.14
  6. Step 6: Final answer
    x = 80,168.46

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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.