Home / 153,366.30-211,640.31-86,285.34

Finding the Fourth Proportional to 153,366.30, 211,640.31 and 86,285.34

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Solution

The fourth proportional to 153,366.30, 211,640.31 and 86,285.34 is: 119,070.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,366.30 : 211,640.31 = 86,285.34 : x
  2. Step 2: Convert to fraction form
    153,366.30/211,640.31 = 86,285.34/x
  3. Step 3: Cross multiply
    153,366.30x = 211,640.31 × 86,285.34
  4. Step 4: Simplify right side
    153,366.30x = 18,261,456,106.06
  5. Step 5: Solve for x
    x = 18,261,456,106.06/153,366.30
  6. Step 6: Final answer
    x = 119,070.85

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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.