Home / 124,913.72-172,376.64-71,216.03

Finding the Fourth Proportional to 124,913.72, 172,376.64 and 71,216.03

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Solution

The fourth proportional to 124,913.72, 172,376.64 and 71,216.03 is: 98,275.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,913.72 : 172,376.64 = 71,216.03 : x
  2. Step 2: Convert to fraction form
    124,913.72/172,376.64 = 71,216.03/x
  3. Step 3: Cross multiply
    124,913.72x = 172,376.64 × 71,216.03
  4. Step 4: Simplify right side
    124,913.72x = 12,275,980,396.48
  5. Step 5: Solve for x
    x = 12,275,980,396.48/124,913.72
  6. Step 6: Final answer
    x = 98,275.68

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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.