Home / 102,445.56-141,383.34-57,117.42

Finding the Fourth Proportional to 102,445.56, 141,383.34 and 57,117.42

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Solution

The fourth proportional to 102,445.56, 141,383.34 and 57,117.42 is: 78,826.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,445.56 : 141,383.34 = 57,117.42 : x
  2. Step 2: Convert to fraction form
    102,445.56/141,383.34 = 57,117.42/x
  3. Step 3: Cross multiply
    102,445.56x = 141,383.34 × 57,117.42
  4. Step 4: Simplify right side
    102,445.56x = 8,075,451,611.78
  5. Step 5: Solve for x
    x = 8,075,451,611.78/102,445.56
  6. Step 6: Final answer
    x = 78,826.76

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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.