Home / 236,688.57-326,632.91-129,259.89

Finding the Fourth Proportional to 236,688.57, 326,632.91 and 129,259.89

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Solution

The fourth proportional to 236,688.57, 326,632.91 and 129,259.89 is: 178,380.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,688.57 : 326,632.91 = 129,259.89 : x
  2. Step 2: Convert to fraction form
    236,688.57/326,632.91 = 129,259.89/x
  3. Step 3: Cross multiply
    236,688.57x = 326,632.91 × 129,259.89
  4. Step 4: Simplify right side
    236,688.57x = 42,220,533,370.68
  5. Step 5: Solve for x
    x = 42,220,533,370.68/236,688.57
  6. Step 6: Final answer
    x = 178,380.11

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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.