Home / 137,880.60-190,268.10-77,453.79

Finding the Fourth Proportional to 137,880.60, 190,268.10 and 77,453.79

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Solution

The fourth proportional to 137,880.60, 190,268.10 and 77,453.79 is: 106,882.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,880.60 : 190,268.10 = 77,453.79 : x
  2. Step 2: Convert to fraction form
    137,880.60/190,268.10 = 77,453.79/x
  3. Step 3: Cross multiply
    137,880.60x = 190,268.10 × 77,453.79
  4. Step 4: Simplify right side
    137,880.60x = 14,736,985,461.10
  5. Step 5: Solve for x
    x = 14,736,985,461.10/137,880.60
  6. Step 6: Final answer
    x = 106,882.23

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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.