Home / 130,033.08-179,443.53-72,673.20

Finding the Fourth Proportional to 130,033.08, 179,443.53 and 72,673.20

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Solution

The fourth proportional to 130,033.08, 179,443.53 and 72,673.20 is: 100,287.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,033.08 : 179,443.53 = 72,673.20 : x
  2. Step 2: Convert to fraction form
    130,033.08/179,443.53 = 72,673.20/x
  3. Step 3: Cross multiply
    130,033.08x = 179,443.53 × 72,673.20
  4. Step 4: Simplify right side
    130,033.08x = 13,040,735,544.40
  5. Step 5: Solve for x
    x = 13,040,735,544.40/130,033.08
  6. Step 6: Final answer
    x = 100,287.83

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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.