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Finding the Fourth Proportional to 74,573.84, 111,729.54 and 70,134.23

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Solution

The fourth proportional to 74,573.84, 111,729.54 and 70,134.23 is: 105,077.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,573.84 : 111,729.54 = 70,134.23 : x
  2. Step 2: Convert to fraction form
    74,573.84/111,729.54 = 70,134.23/x
  3. Step 3: Cross multiply
    74,573.84x = 111,729.54 × 70,134.23
  4. Step 4: Simplify right side
    74,573.84x = 7,836,065,256.15
  5. Step 5: Solve for x
    x = 7,836,065,256.15/74,573.84
  6. Step 6: Final answer
    x = 105,077.94

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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.