Home / 152,905.34-211,007.91-85,836.86

Finding the Fourth Proportional to 152,905.34, 211,007.91 and 85,836.86

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Solution

The fourth proportional to 152,905.34, 211,007.91 and 85,836.86 is: 118,454.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,905.34 : 211,007.91 = 85,836.86 : x
  2. Step 2: Convert to fraction form
    152,905.34/211,007.91 = 85,836.86/x
  3. Step 3: Cross multiply
    152,905.34x = 211,007.91 × 85,836.86
  4. Step 4: Simplify right side
    152,905.34x = 18,112,256,429.56
  5. Step 5: Solve for x
    x = 18,112,256,429.56/152,905.34
  6. Step 6: Final answer
    x = 118,454.05

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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.