Home / 142,740.57-214,114.32-47,972.13

Finding the Fourth Proportional to 142,740.57, 214,114.32 and 47,972.13

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Solution

The fourth proportional to 142,740.57, 214,114.32 and 47,972.13 is: 71,959.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,740.57 : 214,114.32 = 47,972.13 : x
  2. Step 2: Convert to fraction form
    142,740.57/214,114.32 = 47,972.13/x
  3. Step 3: Cross multiply
    142,740.57x = 214,114.32 × 47,972.13
  4. Step 4: Simplify right side
    142,740.57x = 10,271,519,993.90
  5. Step 5: Solve for x
    x = 10,271,519,993.90/142,740.57
  6. Step 6: Final answer
    x = 71,959.36

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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.