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Finding the Fourth Proportional to 153,473.42, 211,744.58 and 86,392.46

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Solution

The fourth proportional to 153,473.42, 211,744.58 and 86,392.46 is: 119,194.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,473.42 : 211,744.58 = 86,392.46 : x
  2. Step 2: Convert to fraction form
    153,473.42/211,744.58 = 86,392.46/x
  3. Step 3: Cross multiply
    153,473.42x = 211,744.58 × 86,392.46
  4. Step 4: Simplify right side
    153,473.42x = 18,293,135,157.87
  5. Step 5: Solve for x
    x = 18,293,135,157.87/153,473.42
  6. Step 6: Final answer
    x = 119,194.16

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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.