Home / 136,829.93-188,823.56-76,401.63

Finding the Fourth Proportional to 136,829.93, 188,823.56 and 76,401.63

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Solution

The fourth proportional to 136,829.93, 188,823.56 and 76,401.63 is: 105,433.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,829.93 : 188,823.56 = 76,401.63 : x
  2. Step 2: Convert to fraction form
    136,829.93/188,823.56 = 76,401.63/x
  3. Step 3: Cross multiply
    136,829.93x = 188,823.56 × 76,401.63
  4. Step 4: Simplify right side
    136,829.93x = 14,426,427,384.39
  5. Step 5: Solve for x
    x = 14,426,427,384.39/136,829.93
  6. Step 6: Final answer
    x = 105,433.28

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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.