Home / 145,286.06-200,404.26-99,885.24

Finding the Fourth Proportional to 145,286.06, 200,404.26 and 99,885.24

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Solution

The fourth proportional to 145,286.06, 200,404.26 and 99,885.24 is: 137,779.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,286.06 : 200,404.26 = 99,885.24 : x
  2. Step 2: Convert to fraction form
    145,286.06/200,404.26 = 99,885.24/x
  3. Step 3: Cross multiply
    145,286.06x = 200,404.26 × 99,885.24
  4. Step 4: Simplify right side
    145,286.06x = 20,017,427,607.12
  5. Step 5: Solve for x
    x = 20,017,427,607.12/145,286.06
  6. Step 6: Final answer
    x = 137,779.41

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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.