Home / 158,000.44-218,031.78-86,366.20

Finding the Fourth Proportional to 158,000.44, 218,031.78 and 86,366.20

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Solution

The fourth proportional to 158,000.44, 218,031.78 and 86,366.20 is: 119,180.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,000.44 : 218,031.78 = 86,366.20 : x
  2. Step 2: Convert to fraction form
    158,000.44/218,031.78 = 86,366.20/x
  3. Step 3: Cross multiply
    158,000.44x = 218,031.78 × 86,366.20
  4. Step 4: Simplify right side
    158,000.44x = 18,830,576,317.84
  5. Step 5: Solve for x
    x = 18,830,576,317.84/158,000.44
  6. Step 6: Final answer
    x = 119,180.53

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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.