Home / 147,719.94-203,829.48-87,282.18

Finding the Fourth Proportional to 147,719.94, 203,829.48 and 87,282.18

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Solution

The fourth proportional to 147,719.94, 203,829.48 and 87,282.18 is: 120,435.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,719.94 : 203,829.48 = 87,282.18 : x
  2. Step 2: Convert to fraction form
    147,719.94/203,829.48 = 87,282.18/x
  3. Step 3: Cross multiply
    147,719.94x = 203,829.48 × 87,282.18
  4. Step 4: Simplify right side
    147,719.94x = 17,790,681,362.67
  5. Step 5: Solve for x
    x = 17,790,681,362.67/147,719.94
  6. Step 6: Final answer
    x = 120,435.21

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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.