Home / 153,029.19-211,177.40-85,045.35

Finding the Fourth Proportional to 153,029.19, 211,177.40 and 85,045.35

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Solution

The fourth proportional to 153,029.19, 211,177.40 and 85,045.35 is: 117,360.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,029.19 : 211,177.40 = 85,045.35 : x
  2. Step 2: Convert to fraction form
    153,029.19/211,177.40 = 85,045.35/x
  3. Step 3: Cross multiply
    153,029.19x = 211,177.40 × 85,045.35
  4. Step 4: Simplify right side
    153,029.19x = 17,959,655,469.86
  5. Step 5: Solve for x
    x = 17,959,655,469.86/153,029.19
  6. Step 6: Final answer
    x = 117,360.98

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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.