Home / 138,774.40-191,457.44-91,054.24

Finding the Fourth Proportional to 138,774.40, 191,457.44 and 91,054.24

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Solution

The fourth proportional to 138,774.40, 191,457.44 and 91,054.24 is: 125,621.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,774.40 : 191,457.44 = 91,054.24 : x
  2. Step 2: Convert to fraction form
    138,774.40/191,457.44 = 91,054.24/x
  3. Step 3: Cross multiply
    138,774.40x = 191,457.44 × 91,054.24
  4. Step 4: Simplify right side
    138,774.40x = 17,433,011,691.55
  5. Step 5: Solve for x
    x = 17,433,011,691.55/138,774.40
  6. Step 6: Final answer
    x = 125,621.24

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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.