Home / 107,802.23-147,689.59-103,761.90

Finding the Fourth Proportional to 107,802.23, 147,689.59 and 103,761.90

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Solution

The fourth proportional to 107,802.23, 147,689.59 and 103,761.90 is: 142,154.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,802.23 : 147,689.59 = 103,761.90 : x
  2. Step 2: Convert to fraction form
    107,802.23/147,689.59 = 103,761.90/x
  3. Step 3: Cross multiply
    107,802.23x = 147,689.59 × 103,761.90
  4. Step 4: Simplify right side
    107,802.23x = 15,324,553,097.25
  5. Step 5: Solve for x
    x = 15,324,553,097.25/107,802.23
  6. Step 6: Final answer
    x = 142,154.32

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.