Home / 153,021.03-211,155.58-85,033.71

Finding the Fourth Proportional to 153,021.03, 211,155.58 and 85,033.71

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Solution

The fourth proportional to 153,021.03, 211,155.58 and 85,033.71 is: 117,339.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,021.03 : 211,155.58 = 85,033.71 : x
  2. Step 2: Convert to fraction form
    153,021.03/211,155.58 = 85,033.71/x
  3. Step 3: Cross multiply
    153,021.03x = 211,155.58 × 85,033.71
  4. Step 4: Simplify right side
    153,021.03x = 17,955,342,354.60
  5. Step 5: Solve for x
    x = 17,955,342,354.60/153,021.03
  6. Step 6: Final answer
    x = 117,339.05

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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.