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Finding the Fourth Proportional to 99,702.57, 149,468.94 and 43,501.53

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Solution

The fourth proportional to 99,702.57, 149,468.94 and 43,501.53 is: 65,215.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,702.57 : 149,468.94 = 43,501.53 : x
  2. Step 2: Convert to fraction form
    99,702.57/149,468.94 = 43,501.53/x
  3. Step 3: Cross multiply
    99,702.57x = 149,468.94 × 43,501.53
  4. Step 4: Simplify right side
    99,702.57x = 6,502,127,577.48
  5. Step 5: Solve for x
    x = 6,502,127,577.48/99,702.57
  6. Step 6: Final answer
    x = 65,215.25

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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.