Home / 153,029.80-211,176.90-85,045.06

Finding the Fourth Proportional to 153,029.80, 211,176.90 and 85,045.06

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Solution

The fourth proportional to 153,029.80, 211,176.90 and 85,045.06 is: 117,359.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,029.80 : 211,176.90 = 85,045.06 : x
  2. Step 2: Convert to fraction form
    153,029.80/211,176.90 = 85,045.06/x
  3. Step 3: Cross multiply
    153,029.80x = 211,176.90 × 85,045.06
  4. Step 4: Simplify right side
    153,029.80x = 17,959,552,131.11
  5. Step 5: Solve for x
    x = 17,959,552,131.11/153,029.80
  6. Step 6: Final answer
    x = 117,359.84

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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.