Home / 257,784.38-386,719.40-108,035.93

Finding the Fourth Proportional to 257,784.38, 386,719.40 and 108,035.93

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Solution

The fourth proportional to 257,784.38, 386,719.40 and 108,035.93 is: 162,071.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,784.38 : 386,719.40 = 108,035.93 : x
  2. Step 2: Convert to fraction form
    257,784.38/386,719.40 = 108,035.93/x
  3. Step 3: Cross multiply
    257,784.38x = 386,719.40 × 108,035.93
  4. Step 4: Simplify right side
    257,784.38x = 41,779,590,028.04
  5. Step 5: Solve for x
    x = 41,779,590,028.04/257,784.38
  6. Step 6: Final answer
    x = 162,071.84

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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.