Home / 153,127.76-211,305.48-86,069.84

Finding the Fourth Proportional to 153,127.76, 211,305.48 and 86,069.84

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Solution

The fourth proportional to 153,127.76, 211,305.48 and 86,069.84 is: 118,770.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,127.76 : 211,305.48 = 86,069.84 : x
  2. Step 2: Convert to fraction form
    153,127.76/211,305.48 = 86,069.84/x
  3. Step 3: Cross multiply
    153,127.76x = 211,305.48 × 86,069.84
  4. Step 4: Simplify right side
    153,127.76x = 18,187,028,854.72
  5. Step 5: Solve for x
    x = 18,187,028,854.72/153,127.76
  6. Step 6: Final answer
    x = 118,770.29

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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.