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Finding the Fourth Proportional to 134,643.98, 185,800.23 and 74,211.29

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Solution

The fourth proportional to 134,643.98, 185,800.23 and 74,211.29 is: 102,406.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,643.98 : 185,800.23 = 74,211.29 : x
  2. Step 2: Convert to fraction form
    134,643.98/185,800.23 = 74,211.29/x
  3. Step 3: Cross multiply
    134,643.98x = 185,800.23 × 74,211.29
  4. Step 4: Simplify right side
    134,643.98x = 13,788,474,750.60
  5. Step 5: Solve for x
    x = 13,788,474,750.60/134,643.98
  6. Step 6: Final answer
    x = 102,406.92

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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.