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Finding the Fourth Proportional to 183,145.47, 274,811.88 and 87,191.12

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Solution

The fourth proportional to 183,145.47, 274,811.88 and 87,191.12 is: 130,831.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,145.47 : 274,811.88 = 87,191.12 : x
  2. Step 2: Convert to fraction form
    183,145.47/274,811.88 = 87,191.12/x
  3. Step 3: Cross multiply
    183,145.47x = 274,811.88 × 87,191.12
  4. Step 4: Simplify right side
    183,145.47x = 23,961,154,232.45
  5. Step 5: Solve for x
    x = 23,961,154,232.45/183,145.47
  6. Step 6: Final answer
    x = 130,831.27

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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.