Home / 120,069.02-180,225.39-60,140.43

Finding the Fourth Proportional to 120,069.02, 180,225.39 and 60,140.43

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Solution

The fourth proportional to 120,069.02, 180,225.39 and 60,140.43 is: 90,271.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,069.02 : 180,225.39 = 60,140.43 : x
  2. Step 2: Convert to fraction form
    120,069.02/180,225.39 = 60,140.43/x
  3. Step 3: Cross multiply
    120,069.02x = 180,225.39 × 60,140.43
  4. Step 4: Simplify right side
    120,069.02x = 10,838,832,451.52
  5. Step 5: Solve for x
    x = 10,838,832,451.52/120,069.02
  6. Step 6: Final answer
    x = 90,271.69

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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.