Home / 102,925.02-154,228.14-71,396.40

Finding the Fourth Proportional to 102,925.02, 154,228.14 and 71,396.40

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Solution

The fourth proportional to 102,925.02, 154,228.14 and 71,396.40 is: 106,984.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,925.02 : 154,228.14 = 71,396.40 : x
  2. Step 2: Convert to fraction form
    102,925.02/154,228.14 = 71,396.40/x
  3. Step 3: Cross multiply
    102,925.02x = 154,228.14 × 71,396.40
  4. Step 4: Simplify right side
    102,925.02x = 11,011,333,974.70
  5. Step 5: Solve for x
    x = 11,011,333,974.70/102,925.02
  6. Step 6: Final answer
    x = 106,984.04

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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.