Home / 179,688.53-247,971.90-99,119.45

Finding the Fourth Proportional to 179,688.53, 247,971.90 and 99,119.45

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Solution

The fourth proportional to 179,688.53, 247,971.90 and 99,119.45 is: 136,785.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,688.53 : 247,971.90 = 99,119.45 : x
  2. Step 2: Convert to fraction form
    179,688.53/247,971.90 = 99,119.45/x
  3. Step 3: Cross multiply
    179,688.53x = 247,971.90 × 99,119.45
  4. Step 4: Simplify right side
    179,688.53x = 24,578,836,608.00
  5. Step 5: Solve for x
    x = 24,578,836,608.00/179,688.53
  6. Step 6: Final answer
    x = 136,785.79

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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.