Home / 130,818.36-180,554.22-74,235

Finding the Fourth Proportional to 130,818.36, 180,554.22 and 74,235

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Solution

The fourth proportional to 130,818.36, 180,554.22 and 74,235 is: 102,458.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,818.36 : 180,554.22 = 74,235 : x
  2. Step 2: Convert to fraction form
    130,818.36/180,554.22 = 74,235/x
  3. Step 3: Cross multiply
    130,818.36x = 180,554.22 × 74,235
  4. Step 4: Simplify right side
    130,818.36x = 13,403,442,521.70
  5. Step 5: Solve for x
    x = 13,403,442,521.70/130,818.36
  6. Step 6: Final answer
    x = 102,458.42

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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.