Home / 157,667.72-217,586.79-86,051.70

Finding the Fourth Proportional to 157,667.72, 217,586.79 and 86,051.70

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Solution

The fourth proportional to 157,667.72, 217,586.79 and 86,051.70 is: 118,754.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,667.72 : 217,586.79 = 86,051.70 : x
  2. Step 2: Convert to fraction form
    157,667.72/217,586.79 = 86,051.70/x
  3. Step 3: Cross multiply
    157,667.72x = 217,586.79 × 86,051.70
  4. Step 4: Simplify right side
    157,667.72x = 18,723,713,177.04
  5. Step 5: Solve for x
    x = 18,723,713,177.04/157,667.72
  6. Step 6: Final answer
    x = 118,754.26

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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.