Home / 130,416.82-179,962.76-103,624.18

Finding the Fourth Proportional to 130,416.82, 179,962.76 and 103,624.18

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Solution

The fourth proportional to 130,416.82, 179,962.76 and 103,624.18 is: 142,991.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,416.82 : 179,962.76 = 103,624.18 : x
  2. Step 2: Convert to fraction form
    130,416.82/179,962.76 = 103,624.18/x
  3. Step 3: Cross multiply
    130,416.82x = 179,962.76 × 103,624.18
  4. Step 4: Simplify right side
    130,416.82x = 18,648,493,435.54
  5. Step 5: Solve for x
    x = 18,648,493,435.54/130,416.82
  6. Step 6: Final answer
    x = 142,991.47

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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.