Home / 130,714.20-196,070.64-71,121.51

Finding the Fourth Proportional to 130,714.20, 196,070.64 and 71,121.51

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Solution

The fourth proportional to 130,714.20, 196,070.64 and 71,121.51 is: 106,681.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,714.20 : 196,070.64 = 71,121.51 : x
  2. Step 2: Convert to fraction form
    130,714.20/196,070.64 = 71,121.51/x
  3. Step 3: Cross multiply
    130,714.20x = 196,070.64 × 71,121.51
  4. Step 4: Simplify right side
    130,714.20x = 13,944,839,983.47
  5. Step 5: Solve for x
    x = 13,944,839,983.47/130,714.20
  6. Step 6: Final answer
    x = 106,681.91

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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.