Home / 130,467.72-180,407.87-103,563.57

Finding the Fourth Proportional to 130,467.72, 180,407.87 and 103,563.57

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Solution

The fourth proportional to 130,467.72, 180,407.87 and 103,563.57 is: 143,205.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,467.72 : 180,407.87 = 103,563.57 : x
  2. Step 2: Convert to fraction form
    130,467.72/180,407.87 = 103,563.57/x
  3. Step 3: Cross multiply
    130,467.72x = 180,407.87 × 103,563.57
  4. Step 4: Simplify right side
    130,467.72x = 18,683,683,073.30
  5. Step 5: Solve for x
    x = 18,683,683,073.30/130,467.72
  6. Step 6: Final answer
    x = 143,205.41

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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.