Home / 140,038.56-193,250.88-76,372.56

Finding the Fourth Proportional to 140,038.56, 193,250.88 and 76,372.56

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Solution

The fourth proportional to 140,038.56, 193,250.88 and 76,372.56 is: 105,392.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,038.56 : 193,250.88 = 76,372.56 : x
  2. Step 2: Convert to fraction form
    140,038.56/193,250.88 = 76,372.56/x
  3. Step 3: Cross multiply
    140,038.56x = 193,250.88 × 76,372.56
  4. Step 4: Simplify right side
    140,038.56x = 14,759,064,427.85
  5. Step 5: Solve for x
    x = 14,759,064,427.85/140,038.56
  6. Step 6: Final answer
    x = 105,392.86

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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.