Home / 153,455.21-211,778.83-93,028.40

Finding the Fourth Proportional to 153,455.21, 211,778.83 and 93,028.40

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Solution

The fourth proportional to 153,455.21, 211,778.83 and 93,028.40 is: 128,385.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,455.21 : 211,778.83 = 93,028.40 : x
  2. Step 2: Convert to fraction form
    153,455.21/211,778.83 = 93,028.40/x
  3. Step 3: Cross multiply
    153,455.21x = 211,778.83 × 93,028.40
  4. Step 4: Simplify right side
    153,455.21x = 19,701,445,708.77
  5. Step 5: Solve for x
    x = 19,701,445,708.77/153,455.21
  6. Step 6: Final answer
    x = 128,385.64

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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.