Home / 107,816.32-161,723.40-76,848.40

Finding the Fourth Proportional to 107,816.32, 161,723.40 and 76,848.40

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Solution

The fourth proportional to 107,816.32, 161,723.40 and 76,848.40 is: 115,271.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,816.32 : 161,723.40 = 76,848.40 : x
  2. Step 2: Convert to fraction form
    107,816.32/161,723.40 = 76,848.40/x
  3. Step 3: Cross multiply
    107,816.32x = 161,723.40 × 76,848.40
  4. Step 4: Simplify right side
    107,816.32x = 12,428,184,532.56
  5. Step 5: Solve for x
    x = 12,428,184,532.56/107,816.32
  6. Step 6: Final answer
    x = 115,271.83

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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.