Home / 186,875.40-280,313.10-68,631.60

Finding the Fourth Proportional to 186,875.40, 280,313.10 and 68,631.60

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Solution

The fourth proportional to 186,875.40, 280,313.10 and 68,631.60 is: 102,947.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,875.40 : 280,313.10 = 68,631.60 : x
  2. Step 2: Convert to fraction form
    186,875.40/280,313.10 = 68,631.60/x
  3. Step 3: Cross multiply
    186,875.40x = 280,313.10 × 68,631.60
  4. Step 4: Simplify right side
    186,875.40x = 19,238,336,553.96
  5. Step 5: Solve for x
    x = 19,238,336,553.96/186,875.40
  6. Step 6: Final answer
    x = 102,947.40

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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.