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Finding the Fourth Proportional to 114,347.54, 171,407.12 and 76,428.74

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Solution

The fourth proportional to 114,347.54, 171,407.12 and 76,428.74 is: 114,566.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,347.54 : 171,407.12 = 76,428.74 : x
  2. Step 2: Convert to fraction form
    114,347.54/171,407.12 = 76,428.74/x
  3. Step 3: Cross multiply
    114,347.54x = 171,407.12 × 76,428.74
  4. Step 4: Simplify right side
    114,347.54x = 13,100,430,446.07
  5. Step 5: Solve for x
    x = 13,100,430,446.07/114,347.54
  6. Step 6: Final answer
    x = 114,566.79

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1.5x scale

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.