Home / 134,782.90-185,999.87-74,357.30

Finding the Fourth Proportional to 134,782.90, 185,999.87 and 74,357.30

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Solution

The fourth proportional to 134,782.90, 185,999.87 and 74,357.30 is: 102,612.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,782.90 : 185,999.87 = 74,357.30 : x
  2. Step 2: Convert to fraction form
    134,782.90/185,999.87 = 74,357.30/x
  3. Step 3: Cross multiply
    134,782.90x = 185,999.87 × 74,357.30
  4. Step 4: Simplify right side
    134,782.90x = 13,830,448,133.55
  5. Step 5: Solve for x
    x = 13,830,448,133.55/134,782.90
  6. Step 6: Final answer
    x = 102,612.78

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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.