Home / 211,187.16-291,430.80-115,692.96

Finding the Fourth Proportional to 211,187.16, 291,430.80 and 115,692.96

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Solution

The fourth proportional to 211,187.16, 291,430.80 and 115,692.96 is: 159,652.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,187.16 : 291,430.80 = 115,692.96 : x
  2. Step 2: Convert to fraction form
    211,187.16/291,430.80 = 115,692.96/x
  3. Step 3: Cross multiply
    211,187.16x = 291,430.80 × 115,692.96
  4. Step 4: Simplify right side
    211,187.16x = 33,716,491,887.17
  5. Step 5: Solve for x
    x = 33,716,491,887.17/211,187.16
  6. Step 6: Final answer
    x = 159,652.19

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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.