Home / 130,728.34-180,408.71-73,371.23

Finding the Fourth Proportional to 130,728.34, 180,408.71 and 73,371.23

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Solution

The fourth proportional to 130,728.34, 180,408.71 and 73,371.23 is: 101,254.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,728.34 : 180,408.71 = 73,371.23 : x
  2. Step 2: Convert to fraction form
    130,728.34/180,408.71 = 73,371.23/x
  3. Step 3: Cross multiply
    130,728.34x = 180,408.71 × 73,371.23
  4. Step 4: Simplify right side
    130,728.34x = 13,236,808,651.14
  5. Step 5: Solve for x
    x = 13,236,808,651.14/130,728.34
  6. Step 6: Final answer
    x = 101,254.31

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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.