Home / 134,720.92-185,927.40-77,368.20

Finding the Fourth Proportional to 134,720.92, 185,927.40 and 77,368.20

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Solution

The fourth proportional to 134,720.92, 185,927.40 and 77,368.20 is: 106,775.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,720.92 : 185,927.40 = 77,368.20 : x
  2. Step 2: Convert to fraction form
    134,720.92/185,927.40 = 77,368.20/x
  3. Step 3: Cross multiply
    134,720.92x = 185,927.40 × 77,368.20
  4. Step 4: Simplify right side
    134,720.92x = 14,384,868,268.68
  5. Step 5: Solve for x
    x = 14,384,868,268.68/134,720.92
  6. Step 6: Final answer
    x = 106,775.31

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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.