Home / 103,628.10-155,223.45-92,547.30

Finding the Fourth Proportional to 103,628.10, 155,223.45 and 92,547.30

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Solution

The fourth proportional to 103,628.10, 155,223.45 and 92,547.30 is: 138,625.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,628.10 : 155,223.45 = 92,547.30 : x
  2. Step 2: Convert to fraction form
    103,628.10/155,223.45 = 92,547.30/x
  3. Step 3: Cross multiply
    103,628.10x = 155,223.45 × 92,547.30
  4. Step 4: Simplify right side
    103,628.10x = 14,365,511,194.19
  5. Step 5: Solve for x
    x = 14,365,511,194.19/103,628.10
  6. Step 6: Final answer
    x = 138,625.64

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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.