Home / 100,850.23-139,172.18-55,527.29

Finding the Fourth Proportional to 100,850.23, 139,172.18 and 55,527.29

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Solution

The fourth proportional to 100,850.23, 139,172.18 and 55,527.29 is: 76,627.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,850.23 : 139,172.18 = 55,527.29 : x
  2. Step 2: Convert to fraction form
    100,850.23/139,172.18 = 55,527.29/x
  3. Step 3: Cross multiply
    100,850.23x = 139,172.18 × 55,527.29
  4. Step 4: Simplify right side
    100,850.23x = 7,727,853,547.19
  5. Step 5: Solve for x
    x = 7,727,853,547.19/100,850.23
  6. Step 6: Final answer
    x = 76,627.03

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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.