Home / 139,547.12-209,318.64-34,367.12

Finding the Fourth Proportional to 139,547.12, 209,318.64 and 34,367.12

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Solution

The fourth proportional to 139,547.12, 209,318.64 and 34,367.12 is: 51,550.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,547.12 : 209,318.64 = 34,367.12 : x
  2. Step 2: Convert to fraction form
    139,547.12/209,318.64 = 34,367.12/x
  3. Step 3: Cross multiply
    139,547.12x = 209,318.64 × 34,367.12
  4. Step 4: Simplify right side
    139,547.12x = 7,193,678,819.12
  5. Step 5: Solve for x
    x = 7,193,678,819.12/139,547.12
  6. Step 6: Final answer
    x = 51,550.18

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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.