Home / 103,569.32-155,357.42-28,690.22

Finding the Fourth Proportional to 103,569.32, 155,357.42 and 28,690.22

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Solution

The fourth proportional to 103,569.32, 155,357.42 and 28,690.22 is: 43,036.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,569.32 : 155,357.42 = 28,690.22 : x
  2. Step 2: Convert to fraction form
    103,569.32/155,357.42 = 28,690.22/x
  3. Step 3: Cross multiply
    103,569.32x = 155,357.42 × 28,690.22
  4. Step 4: Simplify right side
    103,569.32x = 4,457,237,638.19
  5. Step 5: Solve for x
    x = 4,457,237,638.19/103,569.32
  6. Step 6: Final answer
    x = 43,036.28

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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.