Home / 140,065.09-193,291.22-76,404.22

Finding the Fourth Proportional to 140,065.09, 193,291.22 and 76,404.22

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Solution

The fourth proportional to 140,065.09, 193,291.22 and 76,404.22 is: 105,438.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,065.09 : 193,291.22 = 76,404.22 : x
  2. Step 2: Convert to fraction form
    140,065.09/193,291.22 = 76,404.22/x
  3. Step 3: Cross multiply
    140,065.09x = 193,291.22 × 76,404.22
  4. Step 4: Simplify right side
    140,065.09x = 14,768,264,896.95
  5. Step 5: Solve for x
    x = 14,768,264,896.95/140,065.09
  6. Step 6: Final answer
    x = 105,438.58

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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.