Home / 130,628.93-180,282.78-73,283.56

Finding the Fourth Proportional to 130,628.93, 180,282.78 and 73,283.56

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Solution

The fourth proportional to 130,628.93, 180,282.78 and 73,283.56 is: 101,139.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,628.93 : 180,282.78 = 73,283.56 : x
  2. Step 2: Convert to fraction form
    130,628.93/180,282.78 = 73,283.56/x
  3. Step 3: Cross multiply
    130,628.93x = 180,282.78 × 73,283.56
  4. Step 4: Simplify right side
    130,628.93x = 13,211,763,474.39
  5. Step 5: Solve for x
    x = 13,211,763,474.39/130,628.93
  6. Step 6: Final answer
    x = 101,139.65

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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.