Home / 208,829.13-312,840.51-124,656.56

Finding the Fourth Proportional to 208,829.13, 312,840.51 and 124,656.56

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Solution

The fourth proportional to 208,829.13, 312,840.51 and 124,656.56 is: 186,744.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,829.13 : 312,840.51 = 124,656.56 : x
  2. Step 2: Convert to fraction form
    208,829.13/312,840.51 = 124,656.56/x
  3. Step 3: Cross multiply
    208,829.13x = 312,840.51 × 124,656.56
  4. Step 4: Simplify right side
    208,829.13x = 38,997,621,805.25
  5. Step 5: Solve for x
    x = 38,997,621,805.25/208,829.13
  6. Step 6: Final answer
    x = 186,744.17

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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.