Home / 153,298.51-211,550.43-85,314.33

Finding the Fourth Proportional to 153,298.51, 211,550.43 and 85,314.33

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Solution

The fourth proportional to 153,298.51, 211,550.43 and 85,314.33 is: 117,732.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,298.51 : 211,550.43 = 85,314.33 : x
  2. Step 2: Convert to fraction form
    153,298.51/211,550.43 = 85,314.33/x
  3. Step 3: Cross multiply
    153,298.51x = 211,550.43 × 85,314.33
  4. Step 4: Simplify right side
    153,298.51x = 18,048,283,516.59
  5. Step 5: Solve for x
    x = 18,048,283,516.59/153,298.51
  6. Step 6: Final answer
    x = 117,732.94

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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.