Home / 135,931.24-203,897-51,671.60

Finding the Fourth Proportional to 135,931.24, 203,897 and 51,671.60

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Solution

The fourth proportional to 135,931.24, 203,897 and 51,671.60 is: 77,507.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,931.24 : 203,897 = 51,671.60 : x
  2. Step 2: Convert to fraction form
    135,931.24/203,897 = 51,671.60/x
  3. Step 3: Cross multiply
    135,931.24x = 203,897 × 51,671.60
  4. Step 4: Simplify right side
    135,931.24x = 10,535,684,225.20
  5. Step 5: Solve for x
    x = 10,535,684,225.20/135,931.24
  6. Step 6: Final answer
    x = 77,507.45

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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.