Home / 101,940.72-140,677.35-56,001.14

Finding the Fourth Proportional to 101,940.72, 140,677.35 and 56,001.14

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Solution

The fourth proportional to 101,940.72, 140,677.35 and 56,001.14 is: 77,281.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,940.72 : 140,677.35 = 56,001.14 : x
  2. Step 2: Convert to fraction form
    101,940.72/140,677.35 = 56,001.14/x
  3. Step 3: Cross multiply
    101,940.72x = 140,677.35 × 56,001.14
  4. Step 4: Simplify right side
    101,940.72x = 7,878,091,268.79
  5. Step 5: Solve for x
    x = 7,878,091,268.79/101,940.72
  6. Step 6: Final answer
    x = 77,281.10

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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.