Home / 120,683.07-181,747.29-109,909.26

Finding the Fourth Proportional to 120,683.07, 181,747.29 and 109,909.26

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Solution

The fourth proportional to 120,683.07, 181,747.29 and 109,909.26 is: 165,522.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,683.07 : 181,747.29 = 109,909.26 : x
  2. Step 2: Convert to fraction form
    120,683.07/181,747.29 = 109,909.26/x
  3. Step 3: Cross multiply
    120,683.07x = 181,747.29 × 109,909.26
  4. Step 4: Simplify right side
    120,683.07x = 19,975,710,150.91
  5. Step 5: Solve for x
    x = 19,975,710,150.91/120,683.07
  6. Step 6: Final answer
    x = 165,522.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.