Home / 112,021.43-154,582.34-66,702.74

Finding the Fourth Proportional to 112,021.43, 154,582.34 and 66,702.74

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Solution

The fourth proportional to 112,021.43, 154,582.34 and 66,702.74 is: 92,045.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,021.43 : 154,582.34 = 66,702.74 : x
  2. Step 2: Convert to fraction form
    112,021.43/154,582.34 = 66,702.74/x
  3. Step 3: Cross multiply
    112,021.43x = 154,582.34 × 66,702.74
  4. Step 4: Simplify right side
    112,021.43x = 10,311,064,527.19
  5. Step 5: Solve for x
    x = 10,311,064,527.19/112,021.43
  6. Step 6: Final answer
    x = 92,045.47

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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.