Home / 120,068.39-180,102.58-45,205.33

Finding the Fourth Proportional to 120,068.39, 180,102.58 and 45,205.33

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Solution

The fourth proportional to 120,068.39, 180,102.58 and 45,205.33 is: 67,807.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,068.39 : 180,102.58 = 45,205.33 : x
  2. Step 2: Convert to fraction form
    120,068.39/180,102.58 = 45,205.33/x
  3. Step 3: Cross multiply
    120,068.39x = 180,102.58 × 45,205.33
  4. Step 4: Simplify right side
    120,068.39x = 8,141,595,746.55
  5. Step 5: Solve for x
    x = 8,141,595,746.55/120,068.39
  6. Step 6: Final answer
    x = 67,807.99

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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.