Home / 140,291.02-193,601.52-76,628.98

Finding the Fourth Proportional to 140,291.02, 193,601.52 and 76,628.98

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Solution

The fourth proportional to 140,291.02, 193,601.52 and 76,628.98 is: 105,747.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,291.02 : 193,601.52 = 76,628.98 : x
  2. Step 2: Convert to fraction form
    140,291.02/193,601.52 = 76,628.98/x
  3. Step 3: Cross multiply
    140,291.02x = 193,601.52 × 76,628.98
  4. Step 4: Simplify right side
    140,291.02x = 14,835,487,004.05
  5. Step 5: Solve for x
    x = 14,835,487,004.05/140,291.02
  6. Step 6: Final answer
    x = 105,747.94

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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.