Home / 235,677.51-325,178.25-138,885.32

Finding the Fourth Proportional to 235,677.51, 325,178.25 and 138,885.32

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Solution

The fourth proportional to 235,677.51, 325,178.25 and 138,885.32 is: 191,628.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,677.51 : 325,178.25 = 138,885.32 : x
  2. Step 2: Convert to fraction form
    235,677.51/325,178.25 = 138,885.32/x
  3. Step 3: Cross multiply
    235,677.51x = 325,178.25 × 138,885.32
  4. Step 4: Simplify right side
    235,677.51x = 45,162,485,308.29
  5. Step 5: Solve for x
    x = 45,162,485,308.29/235,677.51
  6. Step 6: Final answer
    x = 191,628.32

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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.