Home / 124,642.86-172,089.63-76,966.26

Finding the Fourth Proportional to 124,642.86, 172,089.63 and 76,966.26

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Solution

The fourth proportional to 124,642.86, 172,089.63 and 76,966.26 is: 106,264.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,642.86 : 172,089.63 = 76,966.26 : x
  2. Step 2: Convert to fraction form
    124,642.86/172,089.63 = 76,966.26/x
  3. Step 3: Cross multiply
    124,642.86x = 172,089.63 × 76,966.26
  4. Step 4: Simplify right side
    124,642.86x = 13,245,095,205.88
  5. Step 5: Solve for x
    x = 13,245,095,205.88/124,642.86
  6. Step 6: Final answer
    x = 106,264.37

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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.