Home / 100,264.66-138,365.23-59,980.12

Finding the Fourth Proportional to 100,264.66, 138,365.23 and 59,980.12

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Solution

The fourth proportional to 100,264.66, 138,365.23 and 59,980.12 is: 82,772.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,264.66 : 138,365.23 = 59,980.12 : x
  2. Step 2: Convert to fraction form
    100,264.66/138,365.23 = 59,980.12/x
  3. Step 3: Cross multiply
    100,264.66x = 138,365.23 × 59,980.12
  4. Step 4: Simplify right side
    100,264.66x = 8,299,163,099.23
  5. Step 5: Solve for x
    x = 8,299,163,099.23/100,264.66
  6. Step 6: Final answer
    x = 82,772.57

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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.