Home / 137,788.16-190,132.97-77,365.40

Finding the Fourth Proportional to 137,788.16, 190,132.97 and 77,365.40

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Solution

The fourth proportional to 137,788.16, 190,132.97 and 77,365.40 is: 106,756.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,788.16 : 190,132.97 = 77,365.40 : x
  2. Step 2: Convert to fraction form
    137,788.16/190,132.97 = 77,365.40/x
  3. Step 3: Cross multiply
    137,788.16x = 190,132.97 × 77,365.40
  4. Step 4: Simplify right side
    137,788.16x = 14,709,711,939.75
  5. Step 5: Solve for x
    x = 14,709,711,939.75/137,788.16
  6. Step 6: Final answer
    x = 106,756.00

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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.