Home / 103,639.07-155,209.46-59,130.87

Finding the Fourth Proportional to 103,639.07, 155,209.46 and 59,130.87

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Solution

The fourth proportional to 103,639.07, 155,209.46 and 59,130.87 is: 88,554.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,639.07 : 155,209.46 = 59,130.87 : x
  2. Step 2: Convert to fraction form
    103,639.07/155,209.46 = 59,130.87/x
  3. Step 3: Cross multiply
    103,639.07x = 155,209.46 × 59,130.87
  4. Step 4: Simplify right side
    103,639.07x = 9,177,670,106.38
  5. Step 5: Solve for x
    x = 9,177,670,106.38/103,639.07
  6. Step 6: Final answer
    x = 88,554.16

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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.