Home / 130,556.31-180,167.40-73,967.69

Finding the Fourth Proportional to 130,556.31, 180,167.40 and 73,967.69

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Solution

The fourth proportional to 130,556.31, 180,167.40 and 73,967.69 is: 102,075.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,556.31 : 180,167.40 = 73,967.69 : x
  2. Step 2: Convert to fraction form
    130,556.31/180,167.40 = 73,967.69/x
  3. Step 3: Cross multiply
    130,556.31x = 180,167.40 × 73,967.69
  4. Step 4: Simplify right side
    130,556.31x = 13,326,565,490.47
  5. Step 5: Solve for x
    x = 13,326,565,490.47/130,556.31
  6. Step 6: Final answer
    x = 102,075.23

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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.