Home / 152,983.08-211,139.46-120,643.56

Finding the Fourth Proportional to 152,983.08, 211,139.46 and 120,643.56

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Solution

The fourth proportional to 152,983.08, 211,139.46 and 120,643.56 is: 166,506.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,983.08 : 211,139.46 = 120,643.56 : x
  2. Step 2: Convert to fraction form
    152,983.08/211,139.46 = 120,643.56/x
  3. Step 3: Cross multiply
    152,983.08x = 211,139.46 × 120,643.56
  4. Step 4: Simplify right side
    152,983.08x = 25,472,616,110.88
  5. Step 5: Solve for x
    x = 25,472,616,110.88/152,983.08
  6. Step 6: Final answer
    x = 166,506.10

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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.