Home / 130,689.55-180,358.85-73,347.02

Finding the Fourth Proportional to 130,689.55, 180,358.85 and 73,347.02

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Solution

The fourth proportional to 130,689.55, 180,358.85 and 73,347.02 is: 101,222.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,689.55 : 180,358.85 = 73,347.02 : x
  2. Step 2: Convert to fraction form
    130,689.55/180,358.85 = 73,347.02/x
  3. Step 3: Cross multiply
    130,689.55x = 180,358.85 × 73,347.02
  4. Step 4: Simplify right side
    130,689.55x = 13,228,784,136.05
  5. Step 5: Solve for x
    x = 13,228,784,136.05/130,689.55
  6. Step 6: Final answer
    x = 101,222.97

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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.