Home / 235,985.45-325,656.98-128,553.17

Finding the Fourth Proportional to 235,985.45, 325,656.98 and 128,553.17

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Solution

The fourth proportional to 235,985.45, 325,656.98 and 128,553.17 is: 177,401.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,985.45 : 325,656.98 = 128,553.17 : x
  2. Step 2: Convert to fraction form
    235,985.45/325,656.98 = 128,553.17/x
  3. Step 3: Cross multiply
    235,985.45x = 325,656.98 × 128,553.17
  4. Step 4: Simplify right side
    235,985.45x = 41,864,237,111.63
  5. Step 5: Solve for x
    x = 41,864,237,111.63/235,985.45
  6. Step 6: Final answer
    x = 177,401.77

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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.