Home / 87,953.20-131,681.40-68,459.20

Finding the Fourth Proportional to 87,953.20, 131,681.40 and 68,459.20

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Solution

The fourth proportional to 87,953.20, 131,681.40 and 68,459.20 is: 102,495.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,953.20 : 131,681.40 = 68,459.20 : x
  2. Step 2: Convert to fraction form
    87,953.20/131,681.40 = 68,459.20/x
  3. Step 3: Cross multiply
    87,953.20x = 131,681.40 × 68,459.20
  4. Step 4: Simplify right side
    87,953.20x = 9,014,803,298.88
  5. Step 5: Solve for x
    x = 9,014,803,298.88/87,953.20
  6. Step 6: Final answer
    x = 102,495.46

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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.