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Finding the Fourth Proportional to 135,587.34, 187,110.54 and 75,971.34

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Solution

The fourth proportional to 135,587.34, 187,110.54 and 75,971.34 is: 104,840.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,587.34 : 187,110.54 = 75,971.34 : x
  2. Step 2: Convert to fraction form
    135,587.34/187,110.54 = 75,971.34/x
  3. Step 3: Cross multiply
    135,587.34x = 187,110.54 × 75,971.34
  4. Step 4: Simplify right side
    135,587.34x = 14,215,038,451.92
  5. Step 5: Solve for x
    x = 14,215,038,451.92/135,587.34
  6. Step 6: Final answer
    x = 104,840.46

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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.