Home / 103,435.09-155,152.64-33,314.40

Finding the Fourth Proportional to 103,435.09, 155,152.64 and 33,314.40

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Solution

The fourth proportional to 103,435.09, 155,152.64 and 33,314.40 is: 49,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,435.09 : 155,152.64 = 33,314.40 : x
  2. Step 2: Convert to fraction form
    103,435.09/155,152.64 = 33,314.40/x
  3. Step 3: Cross multiply
    103,435.09x = 155,152.64 × 33,314.40
  4. Step 4: Simplify right side
    103,435.09x = 5,168,817,110.02
  5. Step 5: Solve for x
    x = 5,168,817,110.02/103,435.09
  6. Step 6: Final answer
    x = 49,971.60

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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.