Home / 139,734.12-209,632.12-50,987.38

Finding the Fourth Proportional to 139,734.12, 209,632.12 and 50,987.38

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Solution

The fourth proportional to 139,734.12, 209,632.12 and 50,987.38 is: 76,492.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,734.12 : 209,632.12 = 50,987.38 : x
  2. Step 2: Convert to fraction form
    139,734.12/209,632.12 = 50,987.38/x
  3. Step 3: Cross multiply
    139,734.12x = 209,632.12 × 50,987.38
  4. Step 4: Simplify right side
    139,734.12x = 10,688,592,562.65
  5. Step 5: Solve for x
    x = 10,688,592,562.65/139,734.12
  6. Step 6: Final answer
    x = 76,492.36

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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.