Home / 155,091.86-214,026.82-87,108.94

Finding the Fourth Proportional to 155,091.86, 214,026.82 and 87,108.94

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Solution

The fourth proportional to 155,091.86, 214,026.82 and 87,108.94 is: 120,210.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,091.86 : 214,026.82 = 87,108.94 : x
  2. Step 2: Convert to fraction form
    155,091.86/214,026.82 = 87,108.94/x
  3. Step 3: Cross multiply
    155,091.86x = 214,026.82 × 87,108.94
  4. Step 4: Simplify right side
    155,091.86x = 18,643,649,421.77
  5. Step 5: Solve for x
    x = 18,643,649,421.77/155,091.86
  6. Step 6: Final answer
    x = 120,210.37

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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.