Home / 103,623.30-155,434.95-28,743.30

Finding the Fourth Proportional to 103,623.30, 155,434.95 and 28,743.30

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Solution

The fourth proportional to 103,623.30, 155,434.95 and 28,743.30 is: 43,114.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,623.30 : 155,434.95 = 28,743.30 : x
  2. Step 2: Convert to fraction form
    103,623.30/155,434.95 = 28,743.30/x
  3. Step 3: Cross multiply
    103,623.30x = 155,434.95 × 28,743.30
  4. Step 4: Simplify right side
    103,623.30x = 4,467,713,398.34
  5. Step 5: Solve for x
    x = 4,467,713,398.34/103,623.30
  6. Step 6: Final answer
    x = 43,114.95

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1.5x scale

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.