Home / 140,658.48-194,108.16-76,127.52

Finding the Fourth Proportional to 140,658.48, 194,108.16 and 76,127.52

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Solution

The fourth proportional to 140,658.48, 194,108.16 and 76,127.52 is: 105,055.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,658.48 : 194,108.16 = 76,127.52 : x
  2. Step 2: Convert to fraction form
    140,658.48/194,108.16 = 76,127.52/x
  3. Step 3: Cross multiply
    140,658.48x = 194,108.16 × 76,127.52
  4. Step 4: Simplify right side
    140,658.48x = 14,776,972,832.56
  5. Step 5: Solve for x
    x = 14,776,972,832.56/140,658.48
  6. Step 6: Final answer
    x = 105,055.68

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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.