Home / 102,985.38-154,536.45-55,599.84

Finding the Fourth Proportional to 102,985.38, 154,536.45 and 55,599.84

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Solution

The fourth proportional to 102,985.38, 154,536.45 and 55,599.84 is: 83,431.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,985.38 : 154,536.45 = 55,599.84 : x
  2. Step 2: Convert to fraction form
    102,985.38/154,536.45 = 55,599.84/x
  3. Step 3: Cross multiply
    102,985.38x = 154,536.45 × 55,599.84
  4. Step 4: Simplify right side
    102,985.38x = 8,592,201,894.17
  5. Step 5: Solve for x
    x = 8,592,201,894.17/102,985.38
  6. Step 6: Final answer
    x = 83,431.28

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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.