Home / 124,980.74-172,293.99-89,108.50

Finding the Fourth Proportional to 124,980.74, 172,293.99 and 89,108.50

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Solution

The fourth proportional to 124,980.74, 172,293.99 and 89,108.50 is: 122,841.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,980.74 : 172,293.99 = 89,108.50 : x
  2. Step 2: Convert to fraction form
    124,980.74/172,293.99 = 89,108.50/x
  3. Step 3: Cross multiply
    124,980.74x = 172,293.99 × 89,108.50
  4. Step 4: Simplify right side
    124,980.74x = 15,352,859,007.92
  5. Step 5: Solve for x
    x = 15,352,859,007.92/124,980.74
  6. Step 6: Final answer
    x = 122,841.80

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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.