Home / 137,806.28-190,125.06-77,368.52

Finding the Fourth Proportional to 137,806.28, 190,125.06 and 77,368.52

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Solution

The fourth proportional to 137,806.28, 190,125.06 and 77,368.52 is: 106,741.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,806.28 : 190,125.06 = 77,368.52 : x
  2. Step 2: Convert to fraction form
    137,806.28/190,125.06 = 77,368.52/x
  3. Step 3: Cross multiply
    137,806.28x = 190,125.06 × 77,368.52
  4. Step 4: Simplify right side
    137,806.28x = 14,709,694,507.11
  5. Step 5: Solve for x
    x = 14,709,694,507.11/137,806.28
  6. Step 6: Final answer
    x = 106,741.83

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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.