Home / 134,589.10-185,730.50-74,165.36

Finding the Fourth Proportional to 134,589.10, 185,730.50 and 74,165.36

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Solution

The fourth proportional to 134,589.10, 185,730.50 and 74,165.36 is: 102,346.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,589.10 : 185,730.50 = 74,165.36 : x
  2. Step 2: Convert to fraction form
    134,589.10/185,730.50 = 74,165.36/x
  3. Step 3: Cross multiply
    134,589.10x = 185,730.50 × 74,165.36
  4. Step 4: Simplify right side
    134,589.10x = 13,774,769,395.48
  5. Step 5: Solve for x
    x = 13,774,769,395.48/134,589.10
  6. Step 6: Final answer
    x = 102,346.84

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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.