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Finding the Fourth Proportional to 145,969.80, 218,954.70 and 116,445.30

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Solution

The fourth proportional to 145,969.80, 218,954.70 and 116,445.30 is: 174,667.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,969.80 : 218,954.70 = 116,445.30 : x
  2. Step 2: Convert to fraction form
    145,969.80/218,954.70 = 116,445.30/x
  3. Step 3: Cross multiply
    145,969.80x = 218,954.70 × 116,445.30
  4. Step 4: Simplify right side
    145,969.80x = 25,496,245,727.91
  5. Step 5: Solve for x
    x = 25,496,245,727.91/145,969.80
  6. Step 6: Final answer
    x = 174,667.95

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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.