Home / 120,570.03-180,818.10-83,369.16

Finding the Fourth Proportional to 120,570.03, 180,818.10 and 83,369.16

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Solution

The fourth proportional to 120,570.03, 180,818.10 and 83,369.16 is: 125,028.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,570.03 : 180,818.10 = 83,369.16 : x
  2. Step 2: Convert to fraction form
    120,570.03/180,818.10 = 83,369.16/x
  3. Step 3: Cross multiply
    120,570.03x = 180,818.10 × 83,369.16
  4. Step 4: Simplify right side
    120,570.03x = 15,074,653,109.80
  5. Step 5: Solve for x
    x = 15,074,653,109.80/120,570.03
  6. Step 6: Final answer
    x = 125,028.19

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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.