Home / 211,148.10-291,385.35-115,654.50

Finding the Fourth Proportional to 211,148.10, 291,385.35 and 115,654.50

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Solution

The fourth proportional to 211,148.10, 291,385.35 and 115,654.50 is: 159,603.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,148.10 : 291,385.35 = 115,654.50 : x
  2. Step 2: Convert to fraction form
    211,148.10/291,385.35 = 115,654.50/x
  3. Step 3: Cross multiply
    211,148.10x = 291,385.35 × 115,654.50
  4. Step 4: Simplify right side
    211,148.10x = 33,700,026,961.58
  5. Step 5: Solve for x
    x = 33,700,026,961.58/211,148.10
  6. Step 6: Final answer
    x = 159,603.74

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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.