Home / 157,738.12-217,683.75-86,123.59

Finding the Fourth Proportional to 157,738.12, 217,683.75 and 86,123.59

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Solution

The fourth proportional to 157,738.12, 217,683.75 and 86,123.59 is: 118,853.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,738.12 : 217,683.75 = 86,123.59 : x
  2. Step 2: Convert to fraction form
    157,738.12/217,683.75 = 86,123.59/x
  3. Step 3: Cross multiply
    157,738.12x = 217,683.75 × 86,123.59
  4. Step 4: Simplify right side
    157,738.12x = 18,747,705,813.42
  5. Step 5: Solve for x
    x = 18,747,705,813.42/157,738.12
  6. Step 6: Final answer
    x = 118,853.36

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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.