Home / 115,337.70-158,929.83-85,075.16

Finding the Fourth Proportional to 115,337.70, 158,929.83 and 85,075.16

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Solution

The fourth proportional to 115,337.70, 158,929.83 and 85,075.16 is: 117,229.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,337.70 : 158,929.83 = 85,075.16 : x
  2. Step 2: Convert to fraction form
    115,337.70/158,929.83 = 85,075.16/x
  3. Step 3: Cross multiply
    115,337.70x = 158,929.83 × 85,075.16
  4. Step 4: Simplify right side
    115,337.70x = 13,520,979,921.37
  5. Step 5: Solve for x
    x = 13,520,979,921.37/115,337.70
  6. Step 6: Final answer
    x = 117,229.49

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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.