Home / 130,328.88-179,812.03-72,959.75

Finding the Fourth Proportional to 130,328.88, 179,812.03 and 72,959.75

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Solution

The fourth proportional to 130,328.88, 179,812.03 and 72,959.75 is: 100,661.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,328.88 : 179,812.03 = 72,959.75 : x
  2. Step 2: Convert to fraction form
    130,328.88/179,812.03 = 72,959.75/x
  3. Step 3: Cross multiply
    130,328.88x = 179,812.03 × 72,959.75
  4. Step 4: Simplify right side
    130,328.88x = 13,119,041,022.92
  5. Step 5: Solve for x
    x = 13,119,041,022.92/130,328.88
  6. Step 6: Final answer
    x = 100,661.04

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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.