Home / 121,528.89-167,743.00-70,557.58

Finding the Fourth Proportional to 121,528.89, 167,743.00 and 70,557.58

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Solution

The fourth proportional to 121,528.89, 167,743.00 and 70,557.58 is: 97,388.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,528.89 : 167,743.00 = 70,557.58 : x
  2. Step 2: Convert to fraction form
    121,528.89/167,743.00 = 70,557.58/x
  3. Step 3: Cross multiply
    121,528.89x = 167,743.00 × 70,557.58
  4. Step 4: Simplify right side
    121,528.89x = 11,835,540,439.82
  5. Step 5: Solve for x
    x = 11,835,540,439.82/121,528.89
  6. Step 6: Final answer
    x = 97,388.70

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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.