Home / 130,821.11-180,535.02-73,472.84

Finding the Fourth Proportional to 130,821.11, 180,535.02 and 73,472.84

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Solution

The fourth proportional to 130,821.11, 180,535.02 and 73,472.84 is: 101,393.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,821.11 : 180,535.02 = 73,472.84 : x
  2. Step 2: Convert to fraction form
    130,821.11/180,535.02 = 73,472.84/x
  3. Step 3: Cross multiply
    130,821.11x = 180,535.02 × 73,472.84
  4. Step 4: Simplify right side
    130,821.11x = 13,264,420,638.86
  5. Step 5: Solve for x
    x = 13,264,420,638.86/130,821.11
  6. Step 6: Final answer
    x = 101,393.58

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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.