Home / 103,812.03-155,718.05-59,407.38

Finding the Fourth Proportional to 103,812.03, 155,718.05 and 59,407.38

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Solution

The fourth proportional to 103,812.03, 155,718.05 and 59,407.38 is: 89,111.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,812.03 : 155,718.05 = 59,407.38 : x
  2. Step 2: Convert to fraction form
    103,812.03/155,718.05 = 59,407.38/x
  3. Step 3: Cross multiply
    103,812.03x = 155,718.05 × 59,407.38
  4. Step 4: Simplify right side
    103,812.03x = 9,250,801,369.21
  5. Step 5: Solve for x
    x = 9,250,801,369.21/103,812.03
  6. Step 6: Final answer
    x = 89,111.07

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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.