Home / 117,569.66-162,135.61-90,669.56

Finding the Fourth Proportional to 117,569.66, 162,135.61 and 90,669.56

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Solution

The fourth proportional to 117,569.66, 162,135.61 and 90,669.56 is: 125,038.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,569.66 : 162,135.61 = 90,669.56 : x
  2. Step 2: Convert to fraction form
    117,569.66/162,135.61 = 90,669.56/x
  3. Step 3: Cross multiply
    117,569.66x = 162,135.61 × 90,669.56
  4. Step 4: Simplify right side
    117,569.66x = 14,700,763,381.68
  5. Step 5: Solve for x
    x = 14,700,763,381.68/117,569.66
  6. Step 6: Final answer
    x = 125,038.76

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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.