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Finding the Fourth Proportional to 145,703.34, 217,532.88 and 123,289.29

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Solution

The fourth proportional to 145,703.34, 217,532.88 and 123,289.29 is: 184,069.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,703.34 : 217,532.88 = 123,289.29 : x
  2. Step 2: Convert to fraction form
    145,703.34/217,532.88 = 123,289.29/x
  3. Step 3: Cross multiply
    145,703.34x = 217,532.88 × 123,289.29
  4. Step 4: Simplify right side
    145,703.34x = 26,819,474,326.86
  5. Step 5: Solve for x
    x = 26,819,474,326.86/145,703.34
  6. Step 6: Final answer
    x = 184,069.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.