Home / 117,913.45-162,410.61-90,637.36

Finding the Fourth Proportional to 117,913.45, 162,410.61 and 90,637.36

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Solution

The fourth proportional to 117,913.45, 162,410.61 and 90,637.36 is: 124,841.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,913.45 : 162,410.61 = 90,637.36 : x
  2. Step 2: Convert to fraction form
    117,913.45/162,410.61 = 90,637.36/x
  3. Step 3: Cross multiply
    117,913.45x = 162,410.61 × 90,637.36
  4. Step 4: Simplify right side
    117,913.45x = 14,720,468,926.39
  5. Step 5: Solve for x
    x = 14,720,468,926.39/117,913.45
  6. Step 6: Final answer
    x = 124,841.30

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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.