Home / 102,355.36-141,061.44-74,011.84

Finding the Fourth Proportional to 102,355.36, 141,061.44 and 74,011.84

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Solution

The fourth proportional to 102,355.36, 141,061.44 and 74,011.84 is: 101,999.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,355.36 : 141,061.44 = 74,011.84 : x
  2. Step 2: Convert to fraction form
    102,355.36/141,061.44 = 74,011.84/x
  3. Step 3: Cross multiply
    102,355.36x = 141,061.44 × 74,011.84
  4. Step 4: Simplify right side
    102,355.36x = 10,440,216,727.45
  5. Step 5: Solve for x
    x = 10,440,216,727.45/102,355.36
  6. Step 6: Final answer
    x = 101,999.71

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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.