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Finding the Fourth Proportional to 134,622.51, 185,780.34 and 74,195.37

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Solution

The fourth proportional to 134,622.51, 185,780.34 and 74,195.37 is: 102,390.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,622.51 : 185,780.34 = 74,195.37 : x
  2. Step 2: Convert to fraction form
    134,622.51/185,780.34 = 74,195.37/x
  3. Step 3: Cross multiply
    134,622.51x = 185,780.34 × 74,195.37
  4. Step 4: Simplify right side
    134,622.51x = 13,784,041,065.03
  5. Step 5: Solve for x
    x = 13,784,041,065.03/134,622.51
  6. Step 6: Final answer
    x = 102,390.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.