Home / 138,624.71-191,301.41-74,962.35

Finding the Fourth Proportional to 138,624.71, 191,301.41 and 74,962.35

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Solution

The fourth proportional to 138,624.71, 191,301.41 and 74,962.35 is: 103,447.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,624.71 : 191,301.41 = 74,962.35 : x
  2. Step 2: Convert to fraction form
    138,624.71/191,301.41 = 74,962.35/x
  3. Step 3: Cross multiply
    138,624.71x = 191,301.41 × 74,962.35
  4. Step 4: Simplify right side
    138,624.71x = 14,340,403,439.32
  5. Step 5: Solve for x
    x = 14,340,403,439.32/138,624.71
  6. Step 6: Final answer
    x = 103,447.68

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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.