Home / 101,511.60-140,082.48-56,189.40

Finding the Fourth Proportional to 101,511.60, 140,082.48 and 56,189.40

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Solution

The fourth proportional to 101,511.60, 140,082.48 and 56,189.40 is: 77,539.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,511.60 : 140,082.48 = 56,189.40 : x
  2. Step 2: Convert to fraction form
    101,511.60/140,082.48 = 56,189.40/x
  3. Step 3: Cross multiply
    101,511.60x = 140,082.48 × 56,189.40
  4. Step 4: Simplify right side
    101,511.60x = 7,871,150,501.71
  5. Step 5: Solve for x
    x = 7,871,150,501.71/101,511.60
  6. Step 6: Final answer
    x = 77,539.42

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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.