Home / 102,864.48-154,230-67,697.28

Finding the Fourth Proportional to 102,864.48, 154,230 and 67,697.28

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Solution

The fourth proportional to 102,864.48, 154,230 and 67,697.28 is: 101,502.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,864.48 : 154,230 = 67,697.28 : x
  2. Step 2: Convert to fraction form
    102,864.48/154,230 = 67,697.28/x
  3. Step 3: Cross multiply
    102,864.48x = 154,230 × 67,697.28
  4. Step 4: Simplify right side
    102,864.48x = 10,440,951,494.40
  5. Step 5: Solve for x
    x = 10,440,951,494.40/102,864.48
  6. Step 6: Final answer
    x = 101,502.01

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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.