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Finding the Fourth Proportional to 134,657.10, 185,828.10 and 74,230.14

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Solution

The fourth proportional to 134,657.10, 185,828.10 and 74,230.14 is: 102,438.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,657.10 : 185,828.10 = 74,230.14 : x
  2. Step 2: Convert to fraction form
    134,657.10/185,828.10 = 74,230.14/x
  3. Step 3: Cross multiply
    134,657.10x = 185,828.10 × 74,230.14
  4. Step 4: Simplify right side
    134,657.10x = 13,794,045,878.93
  5. Step 5: Solve for x
    x = 13,794,045,878.93/134,657.10
  6. Step 6: Final answer
    x = 102,438.31

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1.5x scale

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.