Home / 103,237.18-154,464.41-61,139.86

Finding the Fourth Proportional to 103,237.18, 154,464.41 and 61,139.86

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Solution

The fourth proportional to 103,237.18, 154,464.41 and 61,139.86 is: 91,478.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,237.18 : 154,464.41 = 61,139.86 : x
  2. Step 2: Convert to fraction form
    103,237.18/154,464.41 = 61,139.86/x
  3. Step 3: Cross multiply
    103,237.18x = 154,464.41 × 61,139.86
  4. Step 4: Simplify right side
    103,237.18x = 9,443,932,096.68
  5. Step 5: Solve for x
    x = 9,443,932,096.68/103,237.18
  6. Step 6: Final answer
    x = 91,478.01

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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.