Home / 143,255.52-214,809.12-64,301.76

Finding the Fourth Proportional to 143,255.52, 214,809.12 and 64,301.76

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Solution

The fourth proportional to 143,255.52, 214,809.12 and 64,301.76 is: 96,419.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,255.52 : 214,809.12 = 64,301.76 : x
  2. Step 2: Convert to fraction form
    143,255.52/214,809.12 = 64,301.76/x
  3. Step 3: Cross multiply
    143,255.52x = 214,809.12 × 64,301.76
  4. Step 4: Simplify right side
    143,255.52x = 13,812,604,480.05
  5. Step 5: Solve for x
    x = 13,812,604,480.05/143,255.52
  6. Step 6: Final answer
    x = 96,419.35

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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.