Home / 101,688.56-140,337.60-61,412.16

Finding the Fourth Proportional to 101,688.56, 140,337.60 and 61,412.16

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Solution

The fourth proportional to 101,688.56, 140,337.60 and 61,412.16 is: 84,753.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,688.56 : 140,337.60 = 61,412.16 : x
  2. Step 2: Convert to fraction form
    101,688.56/140,337.60 = 61,412.16/x
  3. Step 3: Cross multiply
    101,688.56x = 140,337.60 × 61,412.16
  4. Step 4: Simplify right side
    101,688.56x = 8,618,435,145.22
  5. Step 5: Solve for x
    x = 8,618,435,145.22/101,688.56
  6. Step 6: Final answer
    x = 84,753.24

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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.