Home / 153,267.64-211,509.34-85,289.00

Finding the Fourth Proportional to 153,267.64, 211,509.34 and 85,289.00

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Solution

The fourth proportional to 153,267.64, 211,509.34 and 85,289.00 is: 117,698.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,267.64 : 211,509.34 = 85,289.00 : x
  2. Step 2: Convert to fraction form
    153,267.64/211,509.34 = 85,289.00/x
  3. Step 3: Cross multiply
    153,267.64x = 211,509.34 × 85,289.00
  4. Step 4: Simplify right side
    153,267.64x = 18,039,418,828.49
  5. Step 5: Solve for x
    x = 18,039,418,828.49/153,267.64
  6. Step 6: Final answer
    x = 117,698.81

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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.