Home / 212,066.22-292,719.48-135,790.68

Finding the Fourth Proportional to 212,066.22, 292,719.48 and 135,790.68

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Solution

The fourth proportional to 212,066.22, 292,719.48 and 135,790.68 is: 187,434.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,066.22 : 292,719.48 = 135,790.68 : x
  2. Step 2: Convert to fraction form
    212,066.22/292,719.48 = 135,790.68/x
  3. Step 3: Cross multiply
    212,066.22x = 292,719.48 × 135,790.68
  4. Step 4: Simplify right side
    212,066.22x = 39,748,577,238.45
  5. Step 5: Solve for x
    x = 39,748,577,238.45/212,066.22
  6. Step 6: Final answer
    x = 187,434.74

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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.