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Finding the Fourth Proportional to 170,603.04, 255,830.18 and 90,623.48

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Solution

The fourth proportional to 170,603.04, 255,830.18 and 90,623.48 is: 135,895.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,603.04 : 255,830.18 = 90,623.48 : x
  2. Step 2: Convert to fraction form
    170,603.04/255,830.18 = 90,623.48/x
  3. Step 3: Cross multiply
    170,603.04x = 255,830.18 × 90,623.48
  4. Step 4: Simplify right side
    170,603.04x = 23,184,221,200.63
  5. Step 5: Solve for x
    x = 23,184,221,200.63/170,603.04
  6. Step 6: Final answer
    x = 135,895.71

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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.