Home / 138,809.34-191,557.31-75,146.99

Finding the Fourth Proportional to 138,809.34, 191,557.31 and 75,146.99

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Solution

The fourth proportional to 138,809.34, 191,557.31 and 75,146.99 is: 103,703.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,809.34 : 191,557.31 = 75,146.99 : x
  2. Step 2: Convert to fraction form
    138,809.34/191,557.31 = 75,146.99/x
  3. Step 3: Cross multiply
    138,809.34x = 191,557.31 × 75,146.99
  4. Step 4: Simplify right side
    138,809.34x = 14,394,953,925.48
  5. Step 5: Solve for x
    x = 14,394,953,925.48/138,809.34
  6. Step 6: Final answer
    x = 103,703.06

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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.