Home / 101,528.16-140,113.44-56,816.16

Finding the Fourth Proportional to 101,528.16, 140,113.44 and 56,816.16

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Solution

The fourth proportional to 101,528.16, 140,113.44 and 56,816.16 is: 78,408.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,528.16 : 140,113.44 = 56,816.16 : x
  2. Step 2: Convert to fraction form
    101,528.16/140,113.44 = 56,816.16/x
  3. Step 3: Cross multiply
    101,528.16x = 140,113.44 × 56,816.16
  4. Step 4: Simplify right side
    101,528.16x = 7,960,707,625.19
  5. Step 5: Solve for x
    x = 7,960,707,625.19/101,528.16
  6. Step 6: Final answer
    x = 78,408.86

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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.