Home / 136,830.63-188,824.31-76,402.23

Finding the Fourth Proportional to 136,830.63, 188,824.31 and 76,402.23

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Solution

The fourth proportional to 136,830.63, 188,824.31 and 76,402.23 is: 105,433.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,830.63 : 188,824.31 = 76,402.23 : x
  2. Step 2: Convert to fraction form
    136,830.63/188,824.31 = 76,402.23/x
  3. Step 3: Cross multiply
    136,830.63x = 188,824.31 × 76,402.23
  4. Step 4: Simplify right side
    136,830.63x = 14,426,597,418.09
  5. Step 5: Solve for x
    x = 14,426,597,418.09/136,830.63
  6. Step 6: Final answer
    x = 105,433.98

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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.