Home / 95,431.60-142,855.80-74,436.40

Finding the Fourth Proportional to 95,431.60, 142,855.80 and 74,436.40

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Solution

The fourth proportional to 95,431.60, 142,855.80 and 74,436.40 is: 111,427.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,431.60 : 142,855.80 = 74,436.40 : x
  2. Step 2: Convert to fraction form
    95,431.60/142,855.80 = 74,436.40/x
  3. Step 3: Cross multiply
    95,431.60x = 142,855.80 × 74,436.40
  4. Step 4: Simplify right side
    95,431.60x = 10,633,671,471.12
  5. Step 5: Solve for x
    x = 10,633,671,471.12/95,431.60
  6. Step 6: Final answer
    x = 111,427.15

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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.