Home / 130,218.60-179,718.24-72,861.16

Finding the Fourth Proportional to 130,218.60, 179,718.24 and 72,861.16

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Solution

The fourth proportional to 130,218.60, 179,718.24 and 72,861.16 is: 100,557.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,218.60 : 179,718.24 = 72,861.16 : x
  2. Step 2: Convert to fraction form
    130,218.60/179,718.24 = 72,861.16/x
  3. Step 3: Cross multiply
    130,218.60x = 179,718.24 × 72,861.16
  4. Step 4: Simplify right side
    130,218.60x = 13,094,479,439.56
  5. Step 5: Solve for x
    x = 13,094,479,439.56/130,218.60
  6. Step 6: Final answer
    x = 100,557.67

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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.