Home / 115,030.45-158,874.96-76,723.48

Finding the Fourth Proportional to 115,030.45, 158,874.96 and 76,723.48

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Solution

The fourth proportional to 115,030.45, 158,874.96 and 76,723.48 is: 105,967.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,030.45 : 158,874.96 = 76,723.48 : x
  2. Step 2: Convert to fraction form
    115,030.45/158,874.96 = 76,723.48/x
  3. Step 3: Cross multiply
    115,030.45x = 158,874.96 × 76,723.48
  4. Step 4: Simplify right side
    115,030.45x = 12,189,439,816.06
  5. Step 5: Solve for x
    x = 12,189,439,816.06/115,030.45
  6. Step 6: Final answer
    x = 105,967.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.