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Finding the Fourth Proportional to 187,777.36, 259,138.76 and 102,899.76

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Solution

The fourth proportional to 187,777.36, 259,138.76 and 102,899.76 is: 142,004.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,777.36 : 259,138.76 = 102,899.76 : x
  2. Step 2: Convert to fraction form
    187,777.36/259,138.76 = 102,899.76/x
  3. Step 3: Cross multiply
    187,777.36x = 259,138.76 × 102,899.76
  4. Step 4: Simplify right side
    187,777.36x = 26,665,316,210.70
  5. Step 5: Solve for x
    x = 26,665,316,210.70/187,777.36
  6. Step 6: Final answer
    x = 142,004.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.