Home / 138,054.18-190,044.63-102,176.58

Finding the Fourth Proportional to 138,054.18, 190,044.63 and 102,176.58

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Solution

The fourth proportional to 138,054.18, 190,044.63 and 102,176.58 is: 140,655.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,054.18 : 190,044.63 = 102,176.58 : x
  2. Step 2: Convert to fraction form
    138,054.18/190,044.63 = 102,176.58/x
  3. Step 3: Cross multiply
    138,054.18x = 190,044.63 × 102,176.58
  4. Step 4: Simplify right side
    138,054.18x = 19,418,110,340.77
  5. Step 5: Solve for x
    x = 19,418,110,340.77/138,054.18
  6. Step 6: Final answer
    x = 140,655.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.