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Finding the Fourth Proportional to 101,038.60, 151,266.30 and 89,374.60

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Solution

The fourth proportional to 101,038.60, 151,266.30 and 89,374.60 is: 133,803.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,038.60 : 151,266.30 = 89,374.60 : x
  2. Step 2: Convert to fraction form
    101,038.60/151,266.30 = 89,374.60/x
  3. Step 3: Cross multiply
    101,038.60x = 151,266.30 × 89,374.60
  4. Step 4: Simplify right side
    101,038.60x = 13,519,365,055.98
  5. Step 5: Solve for x
    x = 13,519,365,055.98/101,038.60
  6. Step 6: Final answer
    x = 133,803.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.