Home / 141,856.16-212,761.20-66,976.16

Finding the Fourth Proportional to 141,856.16, 212,761.20 and 66,976.16

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Solution

The fourth proportional to 141,856.16, 212,761.20 and 66,976.16 is: 100,453.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,856.16 : 212,761.20 = 66,976.16 : x
  2. Step 2: Convert to fraction form
    141,856.16/212,761.20 = 66,976.16/x
  3. Step 3: Cross multiply
    141,856.16x = 212,761.20 × 66,976.16
  4. Step 4: Simplify right side
    141,856.16x = 14,249,928,172.99
  5. Step 5: Solve for x
    x = 14,249,928,172.99/141,856.16
  6. Step 6: Final answer
    x = 100,453.36

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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.