Home / 105,474.77-158,237.54-43,145.45

Finding the Fourth Proportional to 105,474.77, 158,237.54 and 43,145.45

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Solution

The fourth proportional to 105,474.77, 158,237.54 and 43,145.45 is: 64,728.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,474.77 : 158,237.54 = 43,145.45 : x
  2. Step 2: Convert to fraction form
    105,474.77/158,237.54 = 43,145.45/x
  3. Step 3: Cross multiply
    105,474.77x = 158,237.54 × 43,145.45
  4. Step 4: Simplify right side
    105,474.77x = 6,827,229,654.47
  5. Step 5: Solve for x
    x = 6,827,229,654.47/105,474.77
  6. Step 6: Final answer
    x = 64,728.56

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1.5x scale

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.