Home / 130,622.10-180,256.50-73,261.41

Finding the Fourth Proportional to 130,622.10, 180,256.50 and 73,261.41

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Solution

The fourth proportional to 130,622.10, 180,256.50 and 73,261.41 is: 101,099.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,622.10 : 180,256.50 = 73,261.41 : x
  2. Step 2: Convert to fraction form
    130,622.10/180,256.50 = 73,261.41/x
  3. Step 3: Cross multiply
    130,622.10x = 180,256.50 × 73,261.41
  4. Step 4: Simplify right side
    130,622.10x = 13,205,845,351.67
  5. Step 5: Solve for x
    x = 13,205,845,351.67/130,622.10
  6. Step 6: Final answer
    x = 101,099.63

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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.