Home / 113,090.93-155,933.64-84,360.72

Finding the Fourth Proportional to 113,090.93, 155,933.64 and 84,360.72

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Solution

The fourth proportional to 113,090.93, 155,933.64 and 84,360.72 is: 116,319.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,090.93 : 155,933.64 = 84,360.72 : x
  2. Step 2: Convert to fraction form
    113,090.93/155,933.64 = 84,360.72/x
  3. Step 3: Cross multiply
    113,090.93x = 155,933.64 × 84,360.72
  4. Step 4: Simplify right side
    113,090.93x = 13,154,673,612.98
  5. Step 5: Solve for x
    x = 13,154,673,612.98/113,090.93
  6. Step 6: Final answer
    x = 116,319.44

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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.