Home / 186,688.40-280,001.81-80,089.56

Finding the Fourth Proportional to 186,688.40, 280,001.81 and 80,089.56

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Solution

The fourth proportional to 186,688.40, 280,001.81 and 80,089.56 is: 120,121.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,688.40 : 280,001.81 = 80,089.56 : x
  2. Step 2: Convert to fraction form
    186,688.40/280,001.81 = 80,089.56/x
  3. Step 3: Cross multiply
    186,688.40x = 280,001.81 × 80,089.56
  4. Step 4: Simplify right side
    186,688.40x = 22,425,221,962.33
  5. Step 5: Solve for x
    x = 22,425,221,962.33/186,688.40
  6. Step 6: Final answer
    x = 120,121.14

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1.5x scale

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.