Home / 112,627.17-155,408.22-64,871.19

Finding the Fourth Proportional to 112,627.17, 155,408.22 and 64,871.19

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Solution

The fourth proportional to 112,627.17, 155,408.22 and 64,871.19 is: 89,512.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,627.17 : 155,408.22 = 64,871.19 : x
  2. Step 2: Convert to fraction form
    112,627.17/155,408.22 = 64,871.19/x
  3. Step 3: Cross multiply
    112,627.17x = 155,408.22 × 64,871.19
  4. Step 4: Simplify right side
    112,627.17x = 10,081,516,167.18
  5. Step 5: Solve for x
    x = 10,081,516,167.18/112,627.17
  6. Step 6: Final answer
    x = 89,512.29

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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.