Home / 102,084.03-140,838.62-61,783.11

Finding the Fourth Proportional to 102,084.03, 140,838.62 and 61,783.11

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Solution

The fourth proportional to 102,084.03, 140,838.62 and 61,783.11 is: 85,238.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,084.03 : 140,838.62 = 61,783.11 : x
  2. Step 2: Convert to fraction form
    102,084.03/140,838.62 = 61,783.11/x
  3. Step 3: Cross multiply
    102,084.03x = 140,838.62 × 61,783.11
  4. Step 4: Simplify right side
    102,084.03x = 8,701,447,642.79
  5. Step 5: Solve for x
    x = 8,701,447,642.79/102,084.03
  6. Step 6: Final answer
    x = 85,238.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.