Home / 124,742.50-172,148.30-68,157.52

Finding the Fourth Proportional to 124,742.50, 172,148.30 and 68,157.52

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Solution

The fourth proportional to 124,742.50, 172,148.30 and 68,157.52 is: 94,059.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,742.50 : 172,148.30 = 68,157.52 : x
  2. Step 2: Convert to fraction form
    124,742.50/172,148.30 = 68,157.52/x
  3. Step 3: Cross multiply
    124,742.50x = 172,148.30 × 68,157.52
  4. Step 4: Simplify right side
    124,742.50x = 11,733,201,200.22
  5. Step 5: Solve for x
    x = 11,733,201,200.22/124,742.50
  6. Step 6: Final answer
    x = 94,059.37

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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.