Home / 155,496.71-214,582.77-87,513.62

Finding the Fourth Proportional to 155,496.71, 214,582.77 and 87,513.62

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Solution

The fourth proportional to 155,496.71, 214,582.77 and 87,513.62 is: 120,767.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,496.71 : 214,582.77 = 87,513.62 : x
  2. Step 2: Convert to fraction form
    155,496.71/214,582.77 = 87,513.62/x
  3. Step 3: Cross multiply
    155,496.71x = 214,582.77 × 87,513.62
  4. Step 4: Simplify right side
    155,496.71x = 18,778,913,919.41
  5. Step 5: Solve for x
    x = 18,778,913,919.41/155,496.71
  6. Step 6: Final answer
    x = 120,767.27

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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.