Home / 102,689.70-154,052.07-45,784.26

Finding the Fourth Proportional to 102,689.70, 154,052.07 and 45,784.26

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Solution

The fourth proportional to 102,689.70, 154,052.07 and 45,784.26 is: 68,684.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,689.70 : 154,052.07 = 45,784.26 : x
  2. Step 2: Convert to fraction form
    102,689.70/154,052.07 = 45,784.26/x
  3. Step 3: Cross multiply
    102,689.70x = 154,052.07 × 45,784.26
  4. Step 4: Simplify right side
    102,689.70x = 7,053,160,026.42
  5. Step 5: Solve for x
    x = 7,053,160,026.42/102,689.70
  6. Step 6: Final answer
    x = 68,684.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.