Home / 120,305.04-180,395.38-52,809.45

Finding the Fourth Proportional to 120,305.04, 180,395.38 and 52,809.45

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Solution

The fourth proportional to 120,305.04, 180,395.38 and 52,809.45 is: 79,186.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,305.04 : 180,395.38 = 52,809.45 : x
  2. Step 2: Convert to fraction form
    120,305.04/180,395.38 = 52,809.45/x
  3. Step 3: Cross multiply
    120,305.04x = 180,395.38 × 52,809.45
  4. Step 4: Simplify right side
    120,305.04x = 9,526,580,800.34
  5. Step 5: Solve for x
    x = 9,526,580,800.34/120,305.04
  6. Step 6: Final answer
    x = 79,186.88

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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.