Home / 134,618.16-185,774.31-74,191.01

Finding the Fourth Proportional to 134,618.16, 185,774.31 and 74,191.01

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Solution

The fourth proportional to 134,618.16, 185,774.31 and 74,191.01 is: 102,384.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,618.16 : 185,774.31 = 74,191.01 : x
  2. Step 2: Convert to fraction form
    134,618.16/185,774.31 = 74,191.01/x
  3. Step 3: Cross multiply
    134,618.16x = 185,774.31 × 74,191.01
  4. Step 4: Simplify right side
    134,618.16x = 13,782,783,690.95
  5. Step 5: Solve for x
    x = 13,782,783,690.95/134,618.16
  6. Step 6: Final answer
    x = 102,384.28

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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.