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Finding the Fourth Proportional to 99,710.95, 149,566.43 and 66,533.35

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Solution

The fourth proportional to 99,710.95, 149,566.43 and 66,533.35 is: 99,800.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,710.95 : 149,566.43 = 66,533.35 : x
  2. Step 2: Convert to fraction form
    99,710.95/149,566.43 = 66,533.35/x
  3. Step 3: Cross multiply
    99,710.95x = 149,566.43 × 66,533.35
  4. Step 4: Simplify right side
    99,710.95x = 9,951,155,302.77
  5. Step 5: Solve for x
    x = 9,951,155,302.77/99,710.95
  6. Step 6: Final answer
    x = 99,800.03

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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.