Home / 100,273.40-138,340.68-59,988.32

Finding the Fourth Proportional to 100,273.40, 138,340.68 and 59,988.32

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Solution

The fourth proportional to 100,273.40, 138,340.68 and 59,988.32 is: 82,761.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,273.40 : 138,340.68 = 59,988.32 : x
  2. Step 2: Convert to fraction form
    100,273.40/138,340.68 = 59,988.32/x
  3. Step 3: Cross multiply
    100,273.40x = 138,340.68 × 59,988.32
  4. Step 4: Simplify right side
    100,273.40x = 8,298,824,980.86
  5. Step 5: Solve for x
    x = 8,298,824,980.86/100,273.40
  6. Step 6: Final answer
    x = 82,761.98

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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.