Home / 201,931.20-302,637.60-122,961.60

Finding the Fourth Proportional to 201,931.20, 302,637.60 and 122,961.60

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Solution

The fourth proportional to 201,931.20, 302,637.60 and 122,961.60 is: 184,284.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,931.20 : 302,637.60 = 122,961.60 : x
  2. Step 2: Convert to fraction form
    201,931.20/302,637.60 = 122,961.60/x
  3. Step 3: Cross multiply
    201,931.20x = 302,637.60 × 122,961.60
  4. Step 4: Simplify right side
    201,931.20x = 37,212,803,516.16
  5. Step 5: Solve for x
    x = 37,212,803,516.16/201,931.20
  6. Step 6: Final answer
    x = 184,284.57

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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.