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Finding the Fourth Proportional to 135,459.68, 187,024.77 and 84,492.86

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Solution

The fourth proportional to 135,459.68, 187,024.77 and 84,492.86 is: 116,656.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,459.68 : 187,024.77 = 84,492.86 : x
  2. Step 2: Convert to fraction form
    135,459.68/187,024.77 = 84,492.86/x
  3. Step 3: Cross multiply
    135,459.68x = 187,024.77 × 84,492.86
  4. Step 4: Simplify right side
    135,459.68x = 15,802,258,175.70
  5. Step 5: Solve for x
    x = 15,802,258,175.70/135,459.68
  6. Step 6: Final answer
    x = 116,656.54

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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.