Home / 135,916.17-187,550.60-79,360.35

Finding the Fourth Proportional to 135,916.17, 187,550.60 and 79,360.35

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Solution

The fourth proportional to 135,916.17, 187,550.60 and 79,360.35 is: 109,509.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,916.17 : 187,550.60 = 79,360.35 : x
  2. Step 2: Convert to fraction form
    135,916.17/187,550.60 = 79,360.35/x
  3. Step 3: Cross multiply
    135,916.17x = 187,550.60 × 79,360.35
  4. Step 4: Simplify right side
    135,916.17x = 14,884,081,258.71
  5. Step 5: Solve for x
    x = 14,884,081,258.71/135,916.17
  6. Step 6: Final answer
    x = 109,509.28

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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.