Home / 151,683.74-209,323.41-83,700.70

Finding the Fourth Proportional to 151,683.74, 209,323.41 and 83,700.70

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Solution

The fourth proportional to 151,683.74, 209,323.41 and 83,700.70 is: 115,506.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,683.74 : 209,323.41 = 83,700.70 : x
  2. Step 2: Convert to fraction form
    151,683.74/209,323.41 = 83,700.70/x
  3. Step 3: Cross multiply
    151,683.74x = 209,323.41 × 83,700.70
  4. Step 4: Simplify right side
    151,683.74x = 17,520,515,106.20
  5. Step 5: Solve for x
    x = 17,520,515,106.20/151,683.74
  6. Step 6: Final answer
    x = 115,506.87

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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.