Home / 101,750.30-140,415.41-56,435.22

Finding the Fourth Proportional to 101,750.30, 140,415.41 and 56,435.22

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Solution

The fourth proportional to 101,750.30, 140,415.41 and 56,435.22 is: 77,880.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,750.30 : 140,415.41 = 56,435.22 : x
  2. Step 2: Convert to fraction form
    101,750.30/140,415.41 = 56,435.22/x
  3. Step 3: Cross multiply
    101,750.30x = 140,415.41 × 56,435.22
  4. Step 4: Simplify right side
    101,750.30x = 7,924,374,484.20
  5. Step 5: Solve for x
    x = 7,924,374,484.20/101,750.30
  6. Step 6: Final answer
    x = 77,880.60

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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.