Home / 117,855.32-162,637.24-64,139.20

Finding the Fourth Proportional to 117,855.32, 162,637.24 and 64,139.20

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Solution

The fourth proportional to 117,855.32, 162,637.24 and 64,139.20 is: 88,510.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,855.32 : 162,637.24 = 64,139.20 : x
  2. Step 2: Convert to fraction form
    117,855.32/162,637.24 = 64,139.20/x
  3. Step 3: Cross multiply
    117,855.32x = 162,637.24 × 64,139.20
  4. Step 4: Simplify right side
    117,855.32x = 10,431,422,463.81
  5. Step 5: Solve for x
    x = 10,431,422,463.81/117,855.32
  6. Step 6: Final answer
    x = 88,510.41

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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.