Home / 145,720.58-201,090.47-82,057.01

Finding the Fourth Proportional to 145,720.58, 201,090.47 and 82,057.01

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Solution

The fourth proportional to 145,720.58, 201,090.47 and 82,057.01 is: 113,236.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,720.58 : 201,090.47 = 82,057.01 : x
  2. Step 2: Convert to fraction form
    145,720.58/201,090.47 = 82,057.01/x
  3. Step 3: Cross multiply
    145,720.58x = 201,090.47 × 82,057.01
  4. Step 4: Simplify right side
    145,720.58x = 16,500,881,291.96
  5. Step 5: Solve for x
    x = 16,500,881,291.96/145,720.58
  6. Step 6: Final answer
    x = 113,236.45

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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.