Home / 136,946.28-188,975.16-76,513.80

Finding the Fourth Proportional to 136,946.28, 188,975.16 and 76,513.80

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Solution

The fourth proportional to 136,946.28, 188,975.16 and 76,513.80 is: 105,583.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,946.28 : 188,975.16 = 76,513.80 : x
  2. Step 2: Convert to fraction form
    136,946.28/188,975.16 = 76,513.80/x
  3. Step 3: Cross multiply
    136,946.28x = 188,975.16 × 76,513.80
  4. Step 4: Simplify right side
    136,946.28x = 14,459,207,597.21
  5. Step 5: Solve for x
    x = 14,459,207,597.21/136,946.28
  6. Step 6: Final answer
    x = 105,583.06

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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.