Home / 130,721.51-180,354.54-73,352.39

Finding the Fourth Proportional to 130,721.51, 180,354.54 and 73,352.39

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Solution

The fourth proportional to 130,721.51, 180,354.54 and 73,352.39 is: 101,203.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,721.51 : 180,354.54 = 73,352.39 : x
  2. Step 2: Convert to fraction form
    130,721.51/180,354.54 = 73,352.39/x
  3. Step 3: Cross multiply
    130,721.51x = 180,354.54 × 73,352.39
  4. Step 4: Simplify right side
    130,721.51x = 13,229,437,007.24
  5. Step 5: Solve for x
    x = 13,229,437,007.24/130,721.51
  6. Step 6: Final answer
    x = 101,203.22

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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.