Home / 130,040.16-179,404.74-81,613.83

Finding the Fourth Proportional to 130,040.16, 179,404.74 and 81,613.83

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Solution

The fourth proportional to 130,040.16, 179,404.74 and 81,613.83 is: 112,595.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,040.16 : 179,404.74 = 81,613.83 : x
  2. Step 2: Convert to fraction form
    130,040.16/179,404.74 = 81,613.83/x
  3. Step 3: Cross multiply
    130,040.16x = 179,404.74 × 81,613.83
  4. Step 4: Simplify right side
    130,040.16x = 14,641,907,270.86
  5. Step 5: Solve for x
    x = 14,641,907,270.86/130,040.16
  6. Step 6: Final answer
    x = 112,595.27

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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.