Home / 100,988.10-151,495.20-34,410.42

Finding the Fourth Proportional to 100,988.10, 151,495.20 and 34,410.42

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Solution

The fourth proportional to 100,988.10, 151,495.20 and 34,410.42 is: 51,620.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,988.10 : 151,495.20 = 34,410.42 : x
  2. Step 2: Convert to fraction form
    100,988.10/151,495.20 = 34,410.42/x
  3. Step 3: Cross multiply
    100,988.10x = 151,495.20 × 34,410.42
  4. Step 4: Simplify right side
    100,988.10x = 5,213,013,459.98
  5. Step 5: Solve for x
    x = 5,213,013,459.98/100,988.10
  6. Step 6: Final answer
    x = 51,620.08

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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.