Home / 130,630.75-180,272.54-73,282.87

Finding the Fourth Proportional to 130,630.75, 180,272.54 and 73,282.87

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Solution

The fourth proportional to 130,630.75, 180,272.54 and 73,282.87 is: 101,131.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,630.75 : 180,272.54 = 73,282.87 : x
  2. Step 2: Convert to fraction form
    130,630.75/180,272.54 = 73,282.87/x
  3. Step 3: Cross multiply
    130,630.75x = 180,272.54 × 73,282.87
  4. Step 4: Simplify right side
    130,630.75x = 13,210,889,113.39
  5. Step 5: Solve for x
    x = 13,210,889,113.39/130,630.75
  6. Step 6: Final answer
    x = 101,131.54

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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.