Home / 143,358.45-215,064.90-47,301.50

Finding the Fourth Proportional to 143,358.45, 215,064.90 and 47,301.50

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Solution

The fourth proportional to 143,358.45, 215,064.90 and 47,301.50 is: 70,961.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,358.45 : 215,064.90 = 47,301.50 : x
  2. Step 2: Convert to fraction form
    143,358.45/215,064.90 = 47,301.50/x
  3. Step 3: Cross multiply
    143,358.45x = 215,064.90 × 47,301.50
  4. Step 4: Simplify right side
    143,358.45x = 10,172,891,292.03
  5. Step 5: Solve for x
    x = 10,172,891,292.03/143,358.45
  6. Step 6: Final answer
    x = 70,961.23

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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.