Home / 158,275.88-218,412.42-86,642.18

Finding the Fourth Proportional to 158,275.88, 218,412.42 and 86,642.18

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Solution

The fourth proportional to 158,275.88, 218,412.42 and 86,642.18 is: 119,561.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,275.88 : 218,412.42 = 86,642.18 : x
  2. Step 2: Convert to fraction form
    158,275.88/218,412.42 = 86,642.18/x
  3. Step 3: Cross multiply
    158,275.88x = 218,412.42 × 86,642.18
  4. Step 4: Simplify right side
    158,275.88x = 18,923,728,207.88
  5. Step 5: Solve for x
    x = 18,923,728,207.88/158,275.88
  6. Step 6: Final answer
    x = 119,561.67

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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.