Home / 103,532.75-155,302.57-28,646.62

Finding the Fourth Proportional to 103,532.75, 155,302.57 and 28,646.62

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Solution

The fourth proportional to 103,532.75, 155,302.57 and 28,646.62 is: 42,970.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,532.75 : 155,302.57 = 28,646.62 : x
  2. Step 2: Convert to fraction form
    103,532.75/155,302.57 = 28,646.62/x
  3. Step 3: Cross multiply
    103,532.75x = 155,302.57 × 28,646.62
  4. Step 4: Simplify right side
    103,532.75x = 4,448,893,707.81
  5. Step 5: Solve for x
    x = 4,448,893,707.81/103,532.75
  6. Step 6: Final answer
    x = 42,970.88

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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.