Home / 155,577.71-214,683.62-86,662.10

Finding the Fourth Proportional to 155,577.71, 214,683.62 and 86,662.10

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Solution

The fourth proportional to 155,577.71, 214,683.62 and 86,662.10 is: 119,586.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,577.71 : 214,683.62 = 86,662.10 : x
  2. Step 2: Convert to fraction form
    155,577.71/214,683.62 = 86,662.10/x
  3. Step 3: Cross multiply
    155,577.71x = 214,683.62 × 86,662.10
  4. Step 4: Simplify right side
    155,577.71x = 18,604,933,448.20
  5. Step 5: Solve for x
    x = 18,604,933,448.20/155,577.71
  6. Step 6: Final answer
    x = 119,586.11

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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.