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Finding the Fourth Proportional to 187,937.60, 259,352.52 and 103,053.20

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Solution

The fourth proportional to 187,937.60, 259,352.52 and 103,053.20 is: 142,212.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,937.60 : 259,352.52 = 103,053.20 : x
  2. Step 2: Convert to fraction form
    187,937.60/259,352.52 = 103,053.20/x
  3. Step 3: Cross multiply
    187,937.60x = 259,352.52 × 103,053.20
  4. Step 4: Simplify right side
    187,937.60x = 26,727,107,114.06
  5. Step 5: Solve for x
    x = 26,727,107,114.06/187,937.60
  6. Step 6: Final answer
    x = 142,212.67

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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.