Home / 107,689.14-161,533.88-28,803.38

Finding the Fourth Proportional to 107,689.14, 161,533.88 and 28,803.38

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Solution

The fourth proportional to 107,689.14, 161,533.88 and 28,803.38 is: 43,205.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,689.14 : 161,533.88 = 28,803.38 : x
  2. Step 2: Convert to fraction form
    107,689.14/161,533.88 = 28,803.38/x
  3. Step 3: Cross multiply
    107,689.14x = 161,533.88 × 28,803.38
  4. Step 4: Simplify right side
    107,689.14x = 4,652,721,728.51
  5. Step 5: Solve for x
    x = 4,652,721,728.51/107,689.14
  6. Step 6: Final answer
    x = 43,205.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.