Home / 117,153.29-161,671.61-63,438.51

Finding the Fourth Proportional to 117,153.29, 161,671.61 and 63,438.51

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Solution

The fourth proportional to 117,153.29, 161,671.61 and 63,438.51 is: 87,545.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,153.29 : 161,671.61 = 63,438.51 : x
  2. Step 2: Convert to fraction form
    117,153.29/161,671.61 = 63,438.51/x
  3. Step 3: Cross multiply
    117,153.29x = 161,671.61 × 63,438.51
  4. Step 4: Simplify right side
    117,153.29x = 10,256,205,730.51
  5. Step 5: Solve for x
    x = 10,256,205,730.51/117,153.29
  6. Step 6: Final answer
    x = 87,545.18

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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.