Home / 138,797.55-191,711.40-100,496.46

Finding the Fourth Proportional to 138,797.55, 191,711.40 and 100,496.46

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Solution

The fourth proportional to 138,797.55, 191,711.40 and 100,496.46 is: 138,808.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,797.55 : 191,711.40 = 100,496.46 : x
  2. Step 2: Convert to fraction form
    138,797.55/191,711.40 = 100,496.46/x
  3. Step 3: Cross multiply
    138,797.55x = 191,711.40 × 100,496.46
  4. Step 4: Simplify right side
    138,797.55x = 19,266,317,041.64
  5. Step 5: Solve for x
    x = 19,266,317,041.64/138,797.55
  6. Step 6: Final answer
    x = 138,808.77

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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.