Home / 112,930,431.40-169,563,608.70-87,400,268.20

Finding the Fourth Proportional to 112,930,431.40, 169,563,608.70 and 87,400,268.20

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Solution

The fourth proportional to 112,930,431.40, 169,563,608.70 and 87,400,268.20 is: 131,230,392.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,930,431.40 : 169,563,608.70 = 87,400,268.20 : x
  2. Step 2: Convert to fraction form
    112,930,431.40/169,563,608.70 = 87,400,268.20/x
  3. Step 3: Cross multiply
    112,930,431.40x = 169,563,608.70 × 87,400,268.20
  4. Step 4: Simplify right side
    112,930,431.40x = 14,819,904,877,339,852
  5. Step 5: Solve for x
    x = 14,819,904,877,339,852/112,930,431.40
  6. Step 6: Final answer
    x = 131,230,392.85

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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.