Home / 102,927.02-154,231.14-71,398.40

Finding the Fourth Proportional to 102,927.02, 154,231.14 and 71,398.40

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Solution

The fourth proportional to 102,927.02, 154,231.14 and 71,398.40 is: 106,987.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,927.02 : 154,231.14 = 71,398.40 : x
  2. Step 2: Convert to fraction form
    102,927.02/154,231.14 = 71,398.40/x
  3. Step 3: Cross multiply
    102,927.02x = 154,231.14 × 71,398.40
  4. Step 4: Simplify right side
    102,927.02x = 11,011,856,626.18
  5. Step 5: Solve for x
    x = 11,011,856,626.18/102,927.02
  6. Step 6: Final answer
    x = 106,987.03

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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.