Home / 117,139.04-161,651.64-63,424.10

Finding the Fourth Proportional to 117,139.04, 161,651.64 and 63,424.10

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Solution

The fourth proportional to 117,139.04, 161,651.64 and 63,424.10 is: 87,525.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,139.04 : 161,651.64 = 63,424.10 : x
  2. Step 2: Convert to fraction form
    117,139.04/161,651.64 = 63,424.10/x
  3. Step 3: Cross multiply
    117,139.04x = 161,651.64 × 63,424.10
  4. Step 4: Simplify right side
    117,139.04x = 10,252,609,780.52
  5. Step 5: Solve for x
    x = 10,252,609,780.52/117,139.04
  6. Step 6: Final answer
    x = 87,525.13

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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.