Home / 120,623.60-180,935.40-112,847.60

Finding the Fourth Proportional to 120,623.60, 180,935.40 and 112,847.60

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Solution

The fourth proportional to 120,623.60, 180,935.40 and 112,847.60 is: 169,271.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,623.60 : 180,935.40 = 112,847.60 : x
  2. Step 2: Convert to fraction form
    120,623.60/180,935.40 = 112,847.60/x
  3. Step 3: Cross multiply
    120,623.60x = 180,935.40 × 112,847.60
  4. Step 4: Simplify right side
    120,623.60x = 20,418,125,645.04
  5. Step 5: Solve for x
    x = 20,418,125,645.04/120,623.60
  6. Step 6: Final answer
    x = 169,271.40

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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.