Home / 154,102.60-231,154.78-47,485.16

Finding the Fourth Proportional to 154,102.60, 231,154.78 and 47,485.16

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Solution

The fourth proportional to 154,102.60, 231,154.78 and 47,485.16 is: 71,228.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,102.60 : 231,154.78 = 47,485.16 : x
  2. Step 2: Convert to fraction form
    154,102.60/231,154.78 = 47,485.16/x
  3. Step 3: Cross multiply
    154,102.60x = 231,154.78 × 47,485.16
  4. Step 4: Simplify right side
    154,102.60x = 10,976,421,713.06
  5. Step 5: Solve for x
    x = 10,976,421,713.06/154,102.60
  6. Step 6: Final answer
    x = 71,228.01

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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.