Home / 145,971.42-201,447.57-82,307.85

Finding the Fourth Proportional to 145,971.42, 201,447.57 and 82,307.85

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Solution

The fourth proportional to 145,971.42, 201,447.57 and 82,307.85 is: 113,588.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,971.42 : 201,447.57 = 82,307.85 : x
  2. Step 2: Convert to fraction form
    145,971.42/201,447.57 = 82,307.85/x
  3. Step 3: Cross multiply
    145,971.42x = 201,447.57 × 82,307.85
  4. Step 4: Simplify right side
    145,971.42x = 16,580,716,374.42
  5. Step 5: Solve for x
    x = 16,580,716,374.42/145,971.42
  6. Step 6: Final answer
    x = 113,588.79

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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.