Home / 130,821.64-180,531.54-73,461.42

Finding the Fourth Proportional to 130,821.64, 180,531.54 and 73,461.42

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Solution

The fourth proportional to 130,821.64, 180,531.54 and 73,461.42 is: 101,375.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,821.64 : 180,531.54 = 73,461.42 : x
  2. Step 2: Convert to fraction form
    130,821.64/180,531.54 = 73,461.42/x
  3. Step 3: Cross multiply
    130,821.64x = 180,531.54 × 73,461.42
  4. Step 4: Simplify right side
    130,821.64x = 13,262,103,283.19
  5. Step 5: Solve for x
    x = 13,262,103,283.19/130,821.64
  6. Step 6: Final answer
    x = 101,375.46

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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.