Home / 100,037.04-138,054.68-54,712.32

Finding the Fourth Proportional to 100,037.04, 138,054.68 and 54,712.32

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Solution

The fourth proportional to 100,037.04, 138,054.68 and 54,712.32 is: 75,504.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,037.04 : 138,054.68 = 54,712.32 : x
  2. Step 2: Convert to fraction form
    100,037.04/138,054.68 = 54,712.32/x
  3. Step 3: Cross multiply
    100,037.04x = 138,054.68 × 54,712.32
  4. Step 4: Simplify right side
    100,037.04x = 7,553,291,829.66
  5. Step 5: Solve for x
    x = 7,553,291,829.66/100,037.04
  6. Step 6: Final answer
    x = 75,504.95

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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.