Home / 139,617.60-209,547.32-73,104.24

Finding the Fourth Proportional to 139,617.60, 209,547.32 and 73,104.24

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Solution

The fourth proportional to 139,617.60, 209,547.32 and 73,104.24 is: 109,719.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,617.60 : 209,547.32 = 73,104.24 : x
  2. Step 2: Convert to fraction form
    139,617.60/209,547.32 = 73,104.24/x
  3. Step 3: Cross multiply
    139,617.60x = 209,547.32 × 73,104.24
  4. Step 4: Simplify right side
    139,617.60x = 15,318,797,572.64
  5. Step 5: Solve for x
    x = 15,318,797,572.64/139,617.60
  6. Step 6: Final answer
    x = 109,719.67

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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.