Home / 121,530.85-167,721.37-70,573.01

Finding the Fourth Proportional to 121,530.85, 167,721.37 and 70,573.01

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Solution

The fourth proportional to 121,530.85, 167,721.37 and 70,573.01 is: 97,395.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,530.85 : 167,721.37 = 70,573.01 : x
  2. Step 2: Convert to fraction form
    121,530.85/167,721.37 = 70,573.01/x
  3. Step 3: Cross multiply
    121,530.85x = 167,721.37 × 70,573.01
  4. Step 4: Simplify right side
    121,530.85x = 11,836,600,907.18
  5. Step 5: Solve for x
    x = 11,836,600,907.18/121,530.85
  6. Step 6: Final answer
    x = 97,395.86

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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.