Home / 100,267.90-138,367.86-59,459.50

Finding the Fourth Proportional to 100,267.90, 138,367.86 and 59,459.50

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Solution

The fourth proportional to 100,267.90, 138,367.86 and 59,459.50 is: 82,053.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,267.90 : 138,367.86 = 59,459.50 : x
  2. Step 2: Convert to fraction form
    100,267.90/138,367.86 = 59,459.50/x
  3. Step 3: Cross multiply
    100,267.90x = 138,367.86 × 59,459.50
  4. Step 4: Simplify right side
    100,267.90x = 8,227,283,771.67
  5. Step 5: Solve for x
    x = 8,227,283,771.67/100,267.90
  6. Step 6: Final answer
    x = 82,053.02

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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.