Home / 130,533.27-180,139.58-73,944.64

Finding the Fourth Proportional to 130,533.27, 180,139.58 and 73,944.64

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Solution

The fourth proportional to 130,533.27, 180,139.58 and 73,944.64 is: 102,045.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,533.27 : 180,139.58 = 73,944.64 : x
  2. Step 2: Convert to fraction form
    130,533.27/180,139.58 = 73,944.64/x
  3. Step 3: Cross multiply
    130,533.27x = 180,139.58 × 73,944.64
  4. Step 4: Simplify right side
    130,533.27x = 13,320,356,392.85
  5. Step 5: Solve for x
    x = 13,320,356,392.85/130,533.27
  6. Step 6: Final answer
    x = 102,045.68

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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.