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Finding the Fourth Proportional to 145,160.80, 217,741.22 and 45,329.54

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Solution

The fourth proportional to 145,160.80, 217,741.22 and 45,329.54 is: 67,994.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,160.80 : 217,741.22 = 45,329.54 : x
  2. Step 2: Convert to fraction form
    145,160.80/217,741.22 = 45,329.54/x
  3. Step 3: Cross multiply
    145,160.80x = 217,741.22 × 45,329.54
  4. Step 4: Simplify right side
    145,160.80x = 9,870,109,341.64
  5. Step 5: Solve for x
    x = 9,870,109,341.64/145,160.80
  6. Step 6: Final answer
    x = 67,994.32

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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.