Home / 113,372.34-170,134.65-78,249.12

Finding the Fourth Proportional to 113,372.34, 170,134.65 and 78,249.12

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Solution

The fourth proportional to 113,372.34, 170,134.65 and 78,249.12 is: 117,426.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,372.34 : 170,134.65 = 78,249.12 : x
  2. Step 2: Convert to fraction form
    113,372.34/170,134.65 = 78,249.12/x
  3. Step 3: Cross multiply
    113,372.34x = 170,134.65 × 78,249.12
  4. Step 4: Simplify right side
    113,372.34x = 13,312,886,644.01
  5. Step 5: Solve for x
    x = 13,312,886,644.01/113,372.34
  6. Step 6: Final answer
    x = 117,426.23

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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.