Home / 120,987.03-181,553.46-42,156.63

Finding the Fourth Proportional to 120,987.03, 181,553.46 and 42,156.63

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Solution

The fourth proportional to 120,987.03, 181,553.46 and 42,156.63 is: 63,260.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,987.03 : 181,553.46 = 42,156.63 : x
  2. Step 2: Convert to fraction form
    120,987.03/181,553.46 = 42,156.63/x
  3. Step 3: Cross multiply
    120,987.03x = 181,553.46 × 42,156.63
  4. Step 4: Simplify right side
    120,987.03x = 7,653,682,038.44
  5. Step 5: Solve for x
    x = 7,653,682,038.44/120,987.03
  6. Step 6: Final answer
    x = 63,260.35

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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.