Home / 113,529.38-156,670.58-65,810.42

Finding the Fourth Proportional to 113,529.38, 156,670.58 and 65,810.42

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Solution

The fourth proportional to 113,529.38, 156,670.58 and 65,810.42 is: 90,818.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,529.38 : 156,670.58 = 65,810.42 : x
  2. Step 2: Convert to fraction form
    113,529.38/156,670.58 = 65,810.42/x
  3. Step 3: Cross multiply
    113,529.38x = 156,670.58 × 65,810.42
  4. Step 4: Simplify right side
    113,529.38x = 10,310,556,671.44
  5. Step 5: Solve for x
    x = 10,310,556,671.44/113,529.38
  6. Step 6: Final answer
    x = 90,818.40

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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.