Home / 106,386.12-145,748.39-102,397.68

Finding the Fourth Proportional to 106,386.12, 145,748.39 and 102,397.68

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Solution

The fourth proportional to 106,386.12, 145,748.39 and 102,397.68 is: 140,284.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,386.12 : 145,748.39 = 102,397.68 : x
  2. Step 2: Convert to fraction form
    106,386.12/145,748.39 = 102,397.68/x
  3. Step 3: Cross multiply
    106,386.12x = 145,748.39 × 102,397.68
  4. Step 4: Simplify right side
    106,386.12x = 14,924,296,487.75
  5. Step 5: Solve for x
    x = 14,924,296,487.75/106,386.12
  6. Step 6: Final answer
    x = 140,284.24

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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.