Home / 211,503.48-291,815.64-136,095.72

Finding the Fourth Proportional to 211,503.48, 291,815.64 and 136,095.72

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Solution

The fourth proportional to 211,503.48, 291,815.64 and 136,095.72 is: 187,774.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,503.48 : 291,815.64 = 136,095.72 : x
  2. Step 2: Convert to fraction form
    211,503.48/291,815.64 = 136,095.72/x
  3. Step 3: Cross multiply
    211,503.48x = 291,815.64 × 136,095.72
  4. Step 4: Simplify right side
    211,503.48x = 39,714,859,633.06
  5. Step 5: Solve for x
    x = 39,714,859,633.06/211,503.48
  6. Step 6: Final answer
    x = 187,774.02

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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.