Home / 140,531.64-193,929.54-76,868.06

Finding the Fourth Proportional to 140,531.64, 193,929.54 and 76,868.06

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Solution

The fourth proportional to 140,531.64, 193,929.54 and 76,868.06 is: 106,075.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,531.64 : 193,929.54 = 76,868.06 : x
  2. Step 2: Convert to fraction form
    140,531.64/193,929.54 = 76,868.06/x
  3. Step 3: Cross multiply
    140,531.64x = 193,929.54 × 76,868.06
  4. Step 4: Simplify right side
    140,531.64x = 14,906,987,516.49
  5. Step 5: Solve for x
    x = 14,906,987,516.49/140,531.64
  6. Step 6: Final answer
    x = 106,075.67

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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.