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Finding the Fourth Proportional to 102,530.55, 153,811.67 and 43,366.55

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Solution

The fourth proportional to 102,530.55, 153,811.67 and 43,366.55 is: 65,056.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,530.55 : 153,811.67 = 43,366.55 : x
  2. Step 2: Convert to fraction form
    102,530.55/153,811.67 = 43,366.55/x
  3. Step 3: Cross multiply
    102,530.55x = 153,811.67 × 43,366.55
  4. Step 4: Simplify right side
    102,530.55x = 6,670,281,477.64
  5. Step 5: Solve for x
    x = 6,670,281,477.64/102,530.55
  6. Step 6: Final answer
    x = 65,056.53

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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.