Home / 124,988.84-172,305.15-89,116.58

Finding the Fourth Proportional to 124,988.84, 172,305.15 and 89,116.58

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Solution

The fourth proportional to 124,988.84, 172,305.15 and 89,116.58 is: 122,852.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,988.84 : 172,305.15 = 89,116.58 : x
  2. Step 2: Convert to fraction form
    124,988.84/172,305.15 = 89,116.58/x
  3. Step 3: Cross multiply
    124,988.84x = 172,305.15 × 89,116.58
  4. Step 4: Simplify right side
    124,988.84x = 15,355,244,822.86
  5. Step 5: Solve for x
    x = 15,355,244,822.86/124,988.84
  6. Step 6: Final answer
    x = 122,852.93

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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.