Home / 117,090.18-161,588.37-71,759.40

Finding the Fourth Proportional to 117,090.18, 161,588.37 and 71,759.40

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Solution

The fourth proportional to 117,090.18, 161,588.37 and 71,759.40 is: 99,030.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,090.18 : 161,588.37 = 71,759.40 : x
  2. Step 2: Convert to fraction form
    117,090.18/161,588.37 = 71,759.40/x
  3. Step 3: Cross multiply
    117,090.18x = 161,588.37 × 71,759.40
  4. Step 4: Simplify right side
    117,090.18x = 11,595,484,478.18
  5. Step 5: Solve for x
    x = 11,595,484,478.18/117,090.18
  6. Step 6: Final answer
    x = 99,030.38

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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.