Home / 130,577.40-180,193.38-73,988.76

Finding the Fourth Proportional to 130,577.40, 180,193.38 and 73,988.76

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Solution

The fourth proportional to 130,577.40, 180,193.38 and 73,988.76 is: 102,102.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,577.40 : 180,193.38 = 73,988.76 : x
  2. Step 2: Convert to fraction form
    130,577.40/180,193.38 = 73,988.76/x
  3. Step 3: Cross multiply
    130,577.40x = 180,193.38 × 73,988.76
  4. Step 4: Simplify right side
    130,577.40x = 13,332,284,746.41
  5. Step 5: Solve for x
    x = 13,332,284,746.41/130,577.40
  6. Step 6: Final answer
    x = 102,102.54

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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.