Home / 130,820.05-180,533.56-73,471.78

Finding the Fourth Proportional to 130,820.05, 180,533.56 and 73,471.78

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Solution

The fourth proportional to 130,820.05, 180,533.56 and 73,471.78 is: 101,392.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,820.05 : 180,533.56 = 73,471.78 : x
  2. Step 2: Convert to fraction form
    130,820.05/180,533.56 = 73,471.78/x
  3. Step 3: Cross multiply
    130,820.05x = 180,533.56 × 73,471.78
  4. Step 4: Simplify right side
    130,820.05x = 13,264,121,635.58
  5. Step 5: Solve for x
    x = 13,264,121,635.58/130,820.05
  6. Step 6: Final answer
    x = 101,392.12

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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.