Home / 102,665.04-154,071.28-43,517.28

Finding the Fourth Proportional to 102,665.04, 154,071.28 and 43,517.28

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Solution

The fourth proportional to 102,665.04, 154,071.28 and 43,517.28 is: 65,307.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,665.04 : 154,071.28 = 43,517.28 : x
  2. Step 2: Convert to fraction form
    102,665.04/154,071.28 = 43,517.28/x
  3. Step 3: Cross multiply
    102,665.04x = 154,071.28 × 43,517.28
  4. Step 4: Simplify right side
    102,665.04x = 6,704,763,031.72
  5. Step 5: Solve for x
    x = 6,704,763,031.72/102,665.04
  6. Step 6: Final answer
    x = 65,307.17

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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.