Home / 101,070.39-139,534.28-67,137.04

Finding the Fourth Proportional to 101,070.39, 139,534.28 and 67,137.04

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Solution

The fourth proportional to 101,070.39, 139,534.28 and 67,137.04 is: 92,687.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,070.39 : 139,534.28 = 67,137.04 : x
  2. Step 2: Convert to fraction form
    101,070.39/139,534.28 = 67,137.04/x
  3. Step 3: Cross multiply
    101,070.39x = 139,534.28 × 67,137.04
  4. Step 4: Simplify right side
    101,070.39x = 9,367,918,628.23
  5. Step 5: Solve for x
    x = 9,367,918,628.23/101,070.39
  6. Step 6: Final answer
    x = 92,687.07

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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.