Home / 124,997.07-172,316.64-89,124.87

Finding the Fourth Proportional to 124,997.07, 172,316.64 and 89,124.87

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Solution

The fourth proportional to 124,997.07, 172,316.64 and 89,124.87 is: 122,864.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,997.07 : 172,316.64 = 89,124.87 : x
  2. Step 2: Convert to fraction form
    124,997.07/172,316.64 = 89,124.87/x
  3. Step 3: Cross multiply
    124,997.07x = 172,316.64 × 89,124.87
  4. Step 4: Simplify right side
    124,997.07x = 15,357,698,138.84
  5. Step 5: Solve for x
    x = 15,357,698,138.84/124,997.07
  6. Step 6: Final answer
    x = 122,864.47

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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.