Home / 100,929.96-138,274.67-97,146.42

Finding the Fourth Proportional to 100,929.96, 138,274.67 and 97,146.42

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Solution

The fourth proportional to 100,929.96, 138,274.67 and 97,146.42 is: 133,091.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,929.96 : 138,274.67 = 97,146.42 : x
  2. Step 2: Convert to fraction form
    100,929.96/138,274.67 = 97,146.42/x
  3. Step 3: Cross multiply
    100,929.96x = 138,274.67 × 97,146.42
  4. Step 4: Simplify right side
    100,929.96x = 13,432,888,681.45
  5. Step 5: Solve for x
    x = 13,432,888,681.45/100,929.96
  6. Step 6: Final answer
    x = 133,091.19

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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.