Home / 103,626.30-155,362.65-70,263.10

Finding the Fourth Proportional to 103,626.30, 155,362.65 and 70,263.10

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Solution

The fourth proportional to 103,626.30, 155,362.65 and 70,263.10 is: 105,342.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,626.30 : 155,362.65 = 70,263.10 : x
  2. Step 2: Convert to fraction form
    103,626.30/155,362.65 = 70,263.10/x
  3. Step 3: Cross multiply
    103,626.30x = 155,362.65 × 70,263.10
  4. Step 4: Simplify right side
    103,626.30x = 10,916,261,413.22
  5. Step 5: Solve for x
    x = 10,916,261,413.22/103,626.30
  6. Step 6: Final answer
    x = 105,342.58

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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.