Home / 120,989.44-181,445.30-39,918.23

Finding the Fourth Proportional to 120,989.44, 181,445.30 and 39,918.23

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Solution

The fourth proportional to 120,989.44, 181,445.30 and 39,918.23 is: 59,864.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,989.44 : 181,445.30 = 39,918.23 : x
  2. Step 2: Convert to fraction form
    120,989.44/181,445.30 = 39,918.23/x
  3. Step 3: Cross multiply
    120,989.44x = 181,445.30 × 39,918.23
  4. Step 4: Simplify right side
    120,989.44x = 7,242,974,111.00
  5. Step 5: Solve for x
    x = 7,242,974,111.00/120,989.44
  6. Step 6: Final answer
    x = 59,864.52

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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.