Home / 133,090.40-183,683.28-76,500.56

Finding the Fourth Proportional to 133,090.40, 183,683.28 and 76,500.56

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Solution

The fourth proportional to 133,090.40, 183,683.28 and 76,500.56 is: 105,581.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,090.40 : 183,683.28 = 76,500.56 : x
  2. Step 2: Convert to fraction form
    133,090.40/183,683.28 = 76,500.56/x
  3. Step 3: Cross multiply
    133,090.40x = 183,683.28 × 76,500.56
  4. Step 4: Simplify right side
    133,090.40x = 14,051,873,782.64
  5. Step 5: Solve for x
    x = 14,051,873,782.64/133,090.40
  6. Step 6: Final answer
    x = 105,581.42

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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.