Home / 130,506.56-180,111.68-73,155.62

Finding the Fourth Proportional to 130,506.56, 180,111.68 and 73,155.62

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Solution

The fourth proportional to 130,506.56, 180,111.68 and 73,155.62 is: 100,961.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,506.56 : 180,111.68 = 73,155.62 : x
  2. Step 2: Convert to fraction form
    130,506.56/180,111.68 = 73,155.62/x
  3. Step 3: Cross multiply
    130,506.56x = 180,111.68 × 73,155.62
  4. Step 4: Simplify right side
    130,506.56x = 13,176,181,619.64
  5. Step 5: Solve for x
    x = 13,176,181,619.64/130,506.56
  6. Step 6: Final answer
    x = 100,961.83

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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.