Home / 111,739.19-167,714.12-40,730.47

Finding the Fourth Proportional to 111,739.19, 167,714.12 and 40,730.47

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Solution

The fourth proportional to 111,739.19, 167,714.12 and 40,730.47 is: 61,134.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,739.19 : 167,714.12 = 40,730.47 : x
  2. Step 2: Convert to fraction form
    111,739.19/167,714.12 = 40,730.47/x
  3. Step 3: Cross multiply
    111,739.19x = 167,714.12 × 40,730.47
  4. Step 4: Simplify right side
    111,739.19x = 6,831,074,615.78
  5. Step 5: Solve for x
    x = 6,831,074,615.78/111,739.19
  6. Step 6: Final answer
    x = 61,134.10

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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.