Home / 201,962.81-278,710.60-111,322.29

Finding the Fourth Proportional to 201,962.81, 278,710.60 and 111,322.29

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Solution

The fourth proportional to 201,962.81, 278,710.60 and 111,322.29 is: 153,625.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,962.81 : 278,710.60 = 111,322.29 : x
  2. Step 2: Convert to fraction form
    201,962.81/278,710.60 = 111,322.29/x
  3. Step 3: Cross multiply
    201,962.81x = 278,710.60 × 111,322.29
  4. Step 4: Simplify right side
    201,962.81x = 31,026,701,960.97
  5. Step 5: Solve for x
    x = 31,026,701,960.97/201,962.81
  6. Step 6: Final answer
    x = 153,625.82

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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.