Home / 99,314.06-148,771.62-45,931.20

Finding the Fourth Proportional to 99,314.06, 148,771.62 and 45,931.20

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Solution

The fourth proportional to 99,314.06, 148,771.62 and 45,931.20 is: 68,804.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,314.06 : 148,771.62 = 45,931.20 : x
  2. Step 2: Convert to fraction form
    99,314.06/148,771.62 = 45,931.20/x
  3. Step 3: Cross multiply
    99,314.06x = 148,771.62 × 45,931.20
  4. Step 4: Simplify right side
    99,314.06x = 6,833,259,032.54
  5. Step 5: Solve for x
    x = 6,833,259,032.54/99,314.06
  6. Step 6: Final answer
    x = 68,804.55

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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.