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Finding the Fourth Proportional to 143,258.76, 214,931.07 and 57,825.63

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Solution

The fourth proportional to 143,258.76, 214,931.07 and 57,825.63 is: 86,755.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,258.76 : 214,931.07 = 57,825.63 : x
  2. Step 2: Convert to fraction form
    143,258.76/214,931.07 = 57,825.63/x
  3. Step 3: Cross multiply
    143,258.76x = 214,931.07 × 57,825.63
  4. Step 4: Simplify right side
    143,258.76x = 12,428,524,529.32
  5. Step 5: Solve for x
    x = 12,428,524,529.32/143,258.76
  6. Step 6: Final answer
    x = 86,755.77

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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.