Home / 124,702.13-172,088.75-68,113.51

Finding the Fourth Proportional to 124,702.13, 172,088.75 and 68,113.51

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Solution

The fourth proportional to 124,702.13, 172,088.75 and 68,113.51 is: 93,996.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,702.13 : 172,088.75 = 68,113.51 : x
  2. Step 2: Convert to fraction form
    124,702.13/172,088.75 = 68,113.51/x
  3. Step 3: Cross multiply
    124,702.13x = 172,088.75 × 68,113.51
  4. Step 4: Simplify right side
    124,702.13x = 11,721,568,534.07
  5. Step 5: Solve for x
    x = 11,721,568,534.07/124,702.13
  6. Step 6: Final answer
    x = 93,996.54

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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.