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Finding the Fourth Proportional to 153,533.53, 211,873.08 and 85,550.23

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Solution

The fourth proportional to 153,533.53, 211,873.08 and 85,550.23 is: 118,057.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,533.53 : 211,873.08 = 85,550.23 : x
  2. Step 2: Convert to fraction form
    153,533.53/211,873.08 = 85,550.23/x
  3. Step 3: Cross multiply
    153,533.53x = 211,873.08 × 85,550.23
  4. Step 4: Simplify right side
    153,533.53x = 18,125,790,724.81
  5. Step 5: Solve for x
    x = 18,125,790,724.81/153,533.53
  6. Step 6: Final answer
    x = 118,057.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.