Home / 138,559.53-191,212.06-74,897.32

Finding the Fourth Proportional to 138,559.53, 191,212.06 and 74,897.32

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Solution

The fourth proportional to 138,559.53, 191,212.06 and 74,897.32 is: 103,358.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,559.53 : 191,212.06 = 74,897.32 : x
  2. Step 2: Convert to fraction form
    138,559.53/191,212.06 = 74,897.32/x
  3. Step 3: Cross multiply
    138,559.53x = 191,212.06 × 74,897.32
  4. Step 4: Simplify right side
    138,559.53x = 14,321,271,696.69
  5. Step 5: Solve for x
    x = 14,321,271,696.69/138,559.53
  6. Step 6: Final answer
    x = 103,358.26

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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.