Home / 124,697.31-172,020.63-73,685.36

Finding the Fourth Proportional to 124,697.31, 172,020.63 and 73,685.36

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Solution

The fourth proportional to 124,697.31, 172,020.63 and 73,685.36 is: 101,649.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,697.31 : 172,020.63 = 73,685.36 : x
  2. Step 2: Convert to fraction form
    124,697.31/172,020.63 = 73,685.36/x
  3. Step 3: Cross multiply
    124,697.31x = 172,020.63 × 73,685.36
  4. Step 4: Simplify right side
    124,697.31x = 12,675,402,048.98
  5. Step 5: Solve for x
    x = 12,675,402,048.98/124,697.31
  6. Step 6: Final answer
    x = 101,649.36

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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.