Home / 159,453.10-239,179.65-122,128.30

Finding the Fourth Proportional to 159,453.10, 239,179.65 and 122,128.30

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Solution

The fourth proportional to 159,453.10, 239,179.65 and 122,128.30 is: 183,192.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,453.10 : 239,179.65 = 122,128.30 : x
  2. Step 2: Convert to fraction form
    159,453.10/239,179.65 = 122,128.30/x
  3. Step 3: Cross multiply
    159,453.10x = 239,179.65 × 122,128.30
  4. Step 4: Simplify right side
    159,453.10x = 29,210,604,049.10
  5. Step 5: Solve for x
    x = 29,210,604,049.10/159,453.10
  6. Step 6: Final answer
    x = 183,192.45

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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.