Home / 115,127.19-172,440.81-55,838.25

Finding the Fourth Proportional to 115,127.19, 172,440.81 and 55,838.25

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Solution

The fourth proportional to 115,127.19, 172,440.81 and 55,838.25 is: 83,636.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,127.19 : 172,440.81 = 55,838.25 : x
  2. Step 2: Convert to fraction form
    115,127.19/172,440.81 = 55,838.25/x
  3. Step 3: Cross multiply
    115,127.19x = 172,440.81 × 55,838.25
  4. Step 4: Simplify right side
    115,127.19x = 9,628,793,058.98
  5. Step 5: Solve for x
    x = 9,628,793,058.98/115,127.19
  6. Step 6: Final answer
    x = 83,636.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.