Home / 145,756.40-201,194.19-85,346.46

Finding the Fourth Proportional to 145,756.40, 201,194.19 and 85,346.46

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Solution

The fourth proportional to 145,756.40, 201,194.19 and 85,346.46 is: 117,807.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,756.40 : 201,194.19 = 85,346.46 : x
  2. Step 2: Convert to fraction form
    145,756.40/201,194.19 = 85,346.46/x
  3. Step 3: Cross multiply
    145,756.40x = 201,194.19 × 85,346.46
  4. Step 4: Simplify right side
    145,756.40x = 17,171,211,889.07
  5. Step 5: Solve for x
    x = 17,171,211,889.07/145,756.40
  6. Step 6: Final answer
    x = 117,807.61

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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.