Home / 130,865.70-180,595.53-74,278.02

Finding the Fourth Proportional to 130,865.70, 180,595.53 and 74,278.02

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Solution

The fourth proportional to 130,865.70, 180,595.53 and 74,278.02 is: 102,504.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,865.70 : 180,595.53 = 74,278.02 : x
  2. Step 2: Convert to fraction form
    130,865.70/180,595.53 = 74,278.02/x
  3. Step 3: Cross multiply
    130,865.70x = 180,595.53 × 74,278.02
  4. Step 4: Simplify right side
    130,865.70x = 13,414,278,389.25
  5. Step 5: Solve for x
    x = 13,414,278,389.25/130,865.70
  6. Step 6: Final answer
    x = 102,504.16

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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.