Home / 236,856.12-326,856.62-129,426.68

Finding the Fourth Proportional to 236,856.12, 326,856.62 and 129,426.68

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Solution

The fourth proportional to 236,856.12, 326,856.62 and 129,426.68 is: 178,606.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,856.12 : 326,856.62 = 129,426.68 : x
  2. Step 2: Convert to fraction form
    236,856.12/326,856.62 = 129,426.68/x
  3. Step 3: Cross multiply
    236,856.12x = 326,856.62 × 129,426.68
  4. Step 4: Simplify right side
    236,856.12x = 42,303,967,162.62
  5. Step 5: Solve for x
    x = 42,303,967,162.62/236,856.12
  6. Step 6: Final answer
    x = 178,606.18

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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.