Home / 236,867.86-326,881.92-129,442.42

Finding the Fourth Proportional to 236,867.86, 326,881.92 and 129,442.42

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Solution

The fourth proportional to 236,867.86, 326,881.92 and 129,442.42 is: 178,632.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,867.86 : 326,881.92 = 129,442.42 : x
  2. Step 2: Convert to fraction form
    236,867.86/326,881.92 = 129,442.42/x
  3. Step 3: Cross multiply
    236,867.86x = 326,881.92 × 129,442.42
  4. Step 4: Simplify right side
    236,867.86x = 42,312,386,779.05
  5. Step 5: Solve for x
    x = 42,312,386,779.05/236,867.86
  6. Step 6: Final answer
    x = 178,632.87

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1.5x scale

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.