Home / 236,788.51-326,790.66-129,374.68

Finding the Fourth Proportional to 236,788.51, 326,790.66 and 129,374.68

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Solution

The fourth proportional to 236,788.51, 326,790.66 and 129,374.68 is: 178,549.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,788.51 : 326,790.66 = 129,374.68 : x
  2. Step 2: Convert to fraction form
    236,788.51/326,790.66 = 129,374.68/x
  3. Step 3: Cross multiply
    236,788.51x = 326,790.66 × 129,374.68
  4. Step 4: Simplify right side
    236,788.51x = 42,278,437,064.49
  5. Step 5: Solve for x
    x = 42,278,437,064.49/236,788.51
  6. Step 6: Final answer
    x = 178,549.36

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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.