Home / 100,111.65-138,140.44-59,816.90

Finding the Fourth Proportional to 100,111.65, 138,140.44 and 59,816.90

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Solution

The fourth proportional to 100,111.65, 138,140.44 and 59,816.90 is: 82,539.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,111.65 : 138,140.44 = 59,816.90 : x
  2. Step 2: Convert to fraction form
    100,111.65/138,140.44 = 59,816.90/x
  3. Step 3: Cross multiply
    100,111.65x = 138,140.44 × 59,816.90
  4. Step 4: Simplify right side
    100,111.65x = 8,263,132,885.44
  5. Step 5: Solve for x
    x = 8,263,132,885.44/100,111.65
  6. Step 6: Final answer
    x = 82,539.17

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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.