Home / 102,389.36-140,274.27-98,554.28

Finding the Fourth Proportional to 102,389.36, 140,274.27 and 98,554.28

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Solution

The fourth proportional to 102,389.36, 140,274.27 and 98,554.28 is: 135,020.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,389.36 : 140,274.27 = 98,554.28 : x
  2. Step 2: Convert to fraction form
    102,389.36/140,274.27 = 98,554.28/x
  3. Step 3: Cross multiply
    102,389.36x = 140,274.27 × 98,554.28
  4. Step 4: Simplify right side
    102,389.36x = 13,824,629,682.38
  5. Step 5: Solve for x
    x = 13,824,629,682.38/102,389.36
  6. Step 6: Final answer
    x = 135,020.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.