Home / 205,237.76-283,148.16-138,214.40

Finding the Fourth Proportional to 205,237.76, 283,148.16 and 138,214.40

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Solution

The fourth proportional to 205,237.76, 283,148.16 and 138,214.40 is: 190,682.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,237.76 : 283,148.16 = 138,214.40 : x
  2. Step 2: Convert to fraction form
    205,237.76/283,148.16 = 138,214.40/x
  3. Step 3: Cross multiply
    205,237.76x = 283,148.16 × 138,214.40
  4. Step 4: Simplify right side
    205,237.76x = 39,135,153,045.50
  5. Step 5: Solve for x
    x = 39,135,153,045.50/205,237.76
  6. Step 6: Final answer
    x = 190,682.03

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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.