Home / 125,146.89-187,720.47-31,652.64

Finding the Fourth Proportional to 125,146.89, 187,720.47 and 31,652.64

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Solution

The fourth proportional to 125,146.89, 187,720.47 and 31,652.64 is: 47,478.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,146.89 : 187,720.47 = 31,652.64 : x
  2. Step 2: Convert to fraction form
    125,146.89/187,720.47 = 31,652.64/x
  3. Step 3: Cross multiply
    125,146.89x = 187,720.47 × 31,652.64
  4. Step 4: Simplify right side
    125,146.89x = 5,941,848,457.54
  5. Step 5: Solve for x
    x = 5,941,848,457.54/125,146.89
  6. Step 6: Final answer
    x = 47,478.99

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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.