Home / 154,485.63-231,816.11-83,407.32

Finding the Fourth Proportional to 154,485.63, 231,816.11 and 83,407.32

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Solution

The fourth proportional to 154,485.63, 231,816.11 and 83,407.32 is: 125,158.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,485.63 : 231,816.11 = 83,407.32 : x
  2. Step 2: Convert to fraction form
    154,485.63/231,816.11 = 83,407.32/x
  3. Step 3: Cross multiply
    154,485.63x = 231,816.11 × 83,407.32
  4. Step 4: Simplify right side
    154,485.63x = 19,335,160,050.89
  5. Step 5: Solve for x
    x = 19,335,160,050.89/154,485.63
  6. Step 6: Final answer
    x = 125,158.31

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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.