Home / 124,990.16-172,486.31-70,553.79

Finding the Fourth Proportional to 124,990.16, 172,486.31 and 70,553.79

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Solution

The fourth proportional to 124,990.16, 172,486.31 and 70,553.79 is: 97,364.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,990.16 : 172,486.31 = 70,553.79 : x
  2. Step 2: Convert to fraction form
    124,990.16/172,486.31 = 70,553.79/x
  3. Step 3: Cross multiply
    124,990.16x = 172,486.31 × 70,553.79
  4. Step 4: Simplify right side
    124,990.16x = 12,169,562,638.78
  5. Step 5: Solve for x
    x = 12,169,562,638.78/124,990.16
  6. Step 6: Final answer
    x = 97,364.16

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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.