Home / 100,110.90-138,139.41-59,816.15

Finding the Fourth Proportional to 100,110.90, 138,139.41 and 59,816.15

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Solution

The fourth proportional to 100,110.90, 138,139.41 and 59,816.15 is: 82,538.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,110.90 : 138,139.41 = 59,816.15 : x
  2. Step 2: Convert to fraction form
    100,110.90/138,139.41 = 59,816.15/x
  3. Step 3: Cross multiply
    100,110.90x = 138,139.41 × 59,816.15
  4. Step 4: Simplify right side
    100,110.90x = 8,262,967,669.47
  5. Step 5: Solve for x
    x = 8,262,967,669.47/100,110.90
  6. Step 6: Final answer
    x = 82,538.14

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1.5x scale

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.