Home / 153,334.29-211,601.30-85,349.80

Finding the Fourth Proportional to 153,334.29, 211,601.30 and 85,349.80

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Solution

The fourth proportional to 153,334.29, 211,601.30 and 85,349.80 is: 117,782.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,334.29 : 211,601.30 = 85,349.80 : x
  2. Step 2: Convert to fraction form
    153,334.29/211,601.30 = 85,349.80/x
  3. Step 3: Cross multiply
    153,334.29x = 211,601.30 × 85,349.80
  4. Step 4: Simplify right side
    153,334.29x = 18,060,128,583.61
  5. Step 5: Solve for x
    x = 18,060,128,583.61/153,334.29
  6. Step 6: Final answer
    x = 117,782.71

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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.