Home / 142,756.68-196,915.08-91,835.88

Finding the Fourth Proportional to 142,756.68, 196,915.08 and 91,835.88

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Solution

The fourth proportional to 142,756.68, 196,915.08 and 91,835.88 is: 126,676.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,756.68 : 196,915.08 = 91,835.88 : x
  2. Step 2: Convert to fraction form
    142,756.68/196,915.08 = 91,835.88/x
  3. Step 3: Cross multiply
    142,756.68x = 196,915.08 × 91,835.88
  4. Step 4: Simplify right side
    142,756.68x = 18,083,869,657.07
  5. Step 5: Solve for x
    x = 18,083,869,657.07/142,756.68
  6. Step 6: Final answer
    x = 126,676.17

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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.