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Finding the Fourth Proportional to 145,201.68, 217,775.52 and 45,364.32

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Solution

The fourth proportional to 145,201.68, 217,775.52 and 45,364.32 is: 68,038.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,201.68 : 217,775.52 = 45,364.32 : x
  2. Step 2: Convert to fraction form
    145,201.68/217,775.52 = 45,364.32/x
  3. Step 3: Cross multiply
    145,201.68x = 217,775.52 × 45,364.32
  4. Step 4: Simplify right side
    145,201.68x = 9,879,238,377.45
  5. Step 5: Solve for x
    x = 9,879,238,377.45/145,201.68
  6. Step 6: Final answer
    x = 68,038.04

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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.