Home / 201,545.48-278,124.41-109,665.14

Finding the Fourth Proportional to 201,545.48, 278,124.41 and 109,665.14

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Solution

The fourth proportional to 201,545.48, 278,124.41 and 109,665.14 is: 151,333.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,545.48 : 278,124.41 = 109,665.14 : x
  2. Step 2: Convert to fraction form
    201,545.48/278,124.41 = 109,665.14/x
  3. Step 3: Cross multiply
    201,545.48x = 278,124.41 × 109,665.14
  4. Step 4: Simplify right side
    201,545.48x = 30,500,552,360.07
  5. Step 5: Solve for x
    x = 30,500,552,360.07/201,545.48
  6. Step 6: Final answer
    x = 151,333.35

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1.5x scale

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.