Home / 138,674.23-191,384.37-84,994.92

Finding the Fourth Proportional to 138,674.23, 191,384.37 and 84,994.92

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Solution

The fourth proportional to 138,674.23, 191,384.37 and 84,994.92 is: 117,301.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,674.23 : 191,384.37 = 84,994.92 : x
  2. Step 2: Convert to fraction form
    138,674.23/191,384.37 = 84,994.92/x
  3. Step 3: Cross multiply
    138,674.23x = 191,384.37 × 84,994.92
  4. Step 4: Simplify right side
    138,674.23x = 16,266,699,217.40
  5. Step 5: Solve for x
    x = 16,266,699,217.40/138,674.23
  6. Step 6: Final answer
    x = 117,301.53

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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.