Home / 120,308.80-180,428.16-36,065.60

Finding the Fourth Proportional to 120,308.80, 180,428.16 and 36,065.60

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Solution

The fourth proportional to 120,308.80, 180,428.16 and 36,065.60 is: 54,087.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,308.80 : 180,428.16 = 36,065.60 : x
  2. Step 2: Convert to fraction form
    120,308.80/180,428.16 = 36,065.60/x
  3. Step 3: Cross multiply
    120,308.80x = 180,428.16 × 36,065.60
  4. Step 4: Simplify right side
    120,308.80x = 6,507,249,847.30
  5. Step 5: Solve for x
    x = 6,507,249,847.30/120,308.80
  6. Step 6: Final answer
    x = 54,087.90

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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.