Home / 131,297.88-196,877.70-89,756.76

Finding the Fourth Proportional to 131,297.88, 196,877.70 and 89,756.76

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Solution

The fourth proportional to 131,297.88, 196,877.70 and 89,756.76 is: 134,587.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,297.88 : 196,877.70 = 89,756.76 : x
  2. Step 2: Convert to fraction form
    131,297.88/196,877.70 = 89,756.76/x
  3. Step 3: Cross multiply
    131,297.88x = 196,877.70 × 89,756.76
  4. Step 4: Simplify right side
    131,297.88x = 17,671,104,468.25
  5. Step 5: Solve for x
    x = 17,671,104,468.25/131,297.88
  6. Step 6: Final answer
    x = 134,587.89

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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.