Home / 130,862.20-180,590.70-74,274.52

Finding the Fourth Proportional to 130,862.20, 180,590.70 and 74,274.52

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Solution

The fourth proportional to 130,862.20, 180,590.70 and 74,274.52 is: 102,499.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,862.20 : 180,590.70 = 74,274.52 : x
  2. Step 2: Convert to fraction form
    130,862.20/180,590.70 = 74,274.52/x
  3. Step 3: Cross multiply
    130,862.20x = 180,590.70 × 74,274.52
  4. Step 4: Simplify right side
    130,862.20x = 13,413,287,558.96
  5. Step 5: Solve for x
    x = 13,413,287,558.96/130,862.20
  6. Step 6: Final answer
    x = 102,499.33

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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.