Home / 138,548.34-191,195.37-77,295.06

Finding the Fourth Proportional to 138,548.34, 191,195.37 and 77,295.06

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Solution

The fourth proportional to 138,548.34, 191,195.37 and 77,295.06 is: 106,666.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,548.34 : 191,195.37 = 77,295.06 : x
  2. Step 2: Convert to fraction form
    138,548.34/191,195.37 = 77,295.06/x
  3. Step 3: Cross multiply
    138,548.34x = 191,195.37 × 77,295.06
  4. Step 4: Simplify right side
    138,548.34x = 14,778,457,595.87
  5. Step 5: Solve for x
    x = 14,778,457,595.87/138,548.34
  6. Step 6: Final answer
    x = 106,666.44

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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.