Home / 103,681.48-155,516.73-51,073.20

Finding the Fourth Proportional to 103,681.48, 155,516.73 and 51,073.20

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Solution

The fourth proportional to 103,681.48, 155,516.73 and 51,073.20 is: 76,607.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,681.48 : 155,516.73 = 51,073.20 : x
  2. Step 2: Convert to fraction form
    103,681.48/155,516.73 = 51,073.20/x
  3. Step 3: Cross multiply
    103,681.48x = 155,516.73 × 51,073.20
  4. Step 4: Simplify right side
    103,681.48x = 7,942,737,054.64
  5. Step 5: Solve for x
    x = 7,942,737,054.64/103,681.48
  6. Step 6: Final answer
    x = 76,607.10

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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.