Home / 100,111.93-138,140.79-59,817.13

Finding the Fourth Proportional to 100,111.93, 138,140.79 and 59,817.13

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Solution

The fourth proportional to 100,111.93, 138,140.79 and 59,817.13 is: 82,539.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,111.93 : 138,140.79 = 59,817.13 : x
  2. Step 2: Convert to fraction form
    100,111.93/138,140.79 = 59,817.13/x
  3. Step 3: Cross multiply
    100,111.93x = 138,140.79 × 59,817.13
  4. Step 4: Simplify right side
    100,111.93x = 8,263,185,593.73
  5. Step 5: Solve for x
    x = 8,263,185,593.73/100,111.93
  6. Step 6: Final answer
    x = 82,539.47

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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.