Home / 130,058.28-179,499.48-76,372.68

Finding the Fourth Proportional to 130,058.28, 179,499.48 and 76,372.68

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Solution

The fourth proportional to 130,058.28, 179,499.48 and 76,372.68 is: 105,405.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,058.28 : 179,499.48 = 76,372.68 : x
  2. Step 2: Convert to fraction form
    130,058.28/179,499.48 = 76,372.68/x
  3. Step 3: Cross multiply
    130,058.28x = 179,499.48 × 76,372.68
  4. Step 4: Simplify right side
    130,058.28x = 13,708,856,346.21
  5. Step 5: Solve for x
    x = 13,708,856,346.21/130,058.28
  6. Step 6: Final answer
    x = 105,405.49

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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.