Home / 153,289.33-211,534.95-85,305.22

Finding the Fourth Proportional to 153,289.33, 211,534.95 and 85,305.22

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Solution

The fourth proportional to 153,289.33, 211,534.95 and 85,305.22 is: 117,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,289.33 : 211,534.95 = 85,305.22 : x
  2. Step 2: Convert to fraction form
    153,289.33/211,534.95 = 85,305.22/x
  3. Step 3: Cross multiply
    153,289.33x = 211,534.95 × 85,305.22
  4. Step 4: Simplify right side
    153,289.33x = 18,045,035,447.44
  5. Step 5: Solve for x
    x = 18,045,035,447.44/153,289.33
  6. Step 6: Final answer
    x = 117,718.80

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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.