Home / 117,579.51-162,265.32-72,259.38

Finding the Fourth Proportional to 117,579.51, 162,265.32 and 72,259.38

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Solution

The fourth proportional to 117,579.51, 162,265.32 and 72,259.38 is: 99,721.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,579.51 : 162,265.32 = 72,259.38 : x
  2. Step 2: Convert to fraction form
    117,579.51/162,265.32 = 72,259.38/x
  3. Step 3: Cross multiply
    117,579.51x = 162,265.32 × 72,259.38
  4. Step 4: Simplify right side
    117,579.51x = 11,725,191,418.70
  5. Step 5: Solve for x
    x = 11,725,191,418.70/117,579.51
  6. Step 6: Final answer
    x = 99,721.38

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1.5x scale

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.