Home / 102,822.20-153,887.70-71,718.20

Finding the Fourth Proportional to 102,822.20, 153,887.70 and 71,718.20

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Solution

The fourth proportional to 102,822.20, 153,887.70 and 71,718.20 is: 107,336.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,822.20 : 153,887.70 = 71,718.20 : x
  2. Step 2: Convert to fraction form
    102,822.20/153,887.70 = 71,718.20/x
  3. Step 3: Cross multiply
    102,822.20x = 153,887.70 × 71,718.20
  4. Step 4: Simplify right side
    102,822.20x = 11,036,548,846.14
  5. Step 5: Solve for x
    x = 11,036,548,846.14/102,822.20
  6. Step 6: Final answer
    x = 107,336.24

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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.