Home / 134,784.90-186,002.63-74,359.31

Finding the Fourth Proportional to 134,784.90, 186,002.63 and 74,359.31

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Solution

The fourth proportional to 134,784.90, 186,002.63 and 74,359.31 is: 102,615.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,784.90 : 186,002.63 = 74,359.31 : x
  2. Step 2: Convert to fraction form
    134,784.90/186,002.63 = 74,359.31/x
  3. Step 3: Cross multiply
    134,784.90x = 186,002.63 × 74,359.31
  4. Step 4: Simplify right side
    134,784.90x = 13,831,025,923.18
  5. Step 5: Solve for x
    x = 13,831,025,923.18/134,784.90
  6. Step 6: Final answer
    x = 102,615.54

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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.