Home / 158,125.84-218,218.86-86,504.22

Finding the Fourth Proportional to 158,125.84, 218,218.86 and 86,504.22

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Solution

The fourth proportional to 158,125.84, 218,218.86 and 86,504.22 is: 119,378.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,125.84 : 218,218.86 = 86,504.22 : x
  2. Step 2: Convert to fraction form
    158,125.84/218,218.86 = 86,504.22/x
  3. Step 3: Cross multiply
    158,125.84x = 218,218.86 × 86,504.22
  4. Step 4: Simplify right side
    158,125.84x = 18,876,852,273.59
  5. Step 5: Solve for x
    x = 18,876,852,273.59/158,125.84
  6. Step 6: Final answer
    x = 119,378.67

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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.