Home / 236,487.49-326,359.65-129,064.42

Finding the Fourth Proportional to 236,487.49, 326,359.65 and 129,064.42

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Solution

The fourth proportional to 236,487.49, 326,359.65 and 129,064.42 is: 178,112.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,487.49 : 326,359.65 = 129,064.42 : x
  2. Step 2: Convert to fraction form
    236,487.49/326,359.65 = 129,064.42/x
  3. Step 3: Cross multiply
    236,487.49x = 326,359.65 × 129,064.42
  4. Step 4: Simplify right side
    236,487.49x = 42,121,418,938.65
  5. Step 5: Solve for x
    x = 42,121,418,938.65/236,487.49
  6. Step 6: Final answer
    x = 178,112.67

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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.