Home / 153,985.20-230,977.80-100,841.10

Finding the Fourth Proportional to 153,985.20, 230,977.80 and 100,841.10

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Solution

The fourth proportional to 153,985.20, 230,977.80 and 100,841.10 is: 151,261.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,985.20 : 230,977.80 = 100,841.10 : x
  2. Step 2: Convert to fraction form
    153,985.20/230,977.80 = 100,841.10/x
  3. Step 3: Cross multiply
    153,985.20x = 230,977.80 × 100,841.10
  4. Step 4: Simplify right side
    153,985.20x = 23,292,055,427.58
  5. Step 5: Solve for x
    x = 23,292,055,427.58/153,985.20
  6. Step 6: Final answer
    x = 151,261.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.