Home / 117,898.06-162,389.28-90,621.92

Finding the Fourth Proportional to 117,898.06, 162,389.28 and 90,621.92

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Solution

The fourth proportional to 117,898.06, 162,389.28 and 90,621.92 is: 124,819.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,898.06 : 162,389.28 = 90,621.92 : x
  2. Step 2: Convert to fraction form
    117,898.06/162,389.28 = 90,621.92/x
  3. Step 3: Cross multiply
    117,898.06x = 162,389.28 × 90,621.92
  4. Step 4: Simplify right side
    117,898.06x = 14,716,028,341.02
  5. Step 5: Solve for x
    x = 14,716,028,341.02/117,898.06
  6. Step 6: Final answer
    x = 124,819.94

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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.