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Finding the Fourth Proportional to 135,798.76, 187,399.47 and 75,365.89

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Solution

The fourth proportional to 135,798.76, 187,399.47 and 75,365.89 is: 104,003.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,798.76 : 187,399.47 = 75,365.89 : x
  2. Step 2: Convert to fraction form
    135,798.76/187,399.47 = 75,365.89/x
  3. Step 3: Cross multiply
    135,798.76x = 187,399.47 × 75,365.89
  4. Step 4: Simplify right side
    135,798.76x = 14,123,527,842.08
  5. Step 5: Solve for x
    x = 14,123,527,842.08/135,798.76
  6. Step 6: Final answer
    x = 104,003.36

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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.