Home / 107,720.34-161,505.55-47,716.23

Finding the Fourth Proportional to 107,720.34, 161,505.55 and 47,716.23

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Solution

The fourth proportional to 107,720.34, 161,505.55 and 47,716.23 is: 71,541.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,720.34 : 161,505.55 = 47,716.23 : x
  2. Step 2: Convert to fraction form
    107,720.34/161,505.55 = 47,716.23/x
  3. Step 3: Cross multiply
    107,720.34x = 161,505.55 × 47,716.23
  4. Step 4: Simplify right side
    107,720.34x = 7,706,435,970.08
  5. Step 5: Solve for x
    x = 7,706,435,970.08/107,720.34
  6. Step 6: Final answer
    x = 71,541.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.