Home / 133,090.04-183,661.40-72,657.74

Finding the Fourth Proportional to 133,090.04, 183,661.40 and 72,657.74

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Solution

The fourth proportional to 133,090.04, 183,661.40 and 72,657.74 is: 100,266.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,090.04 : 183,661.40 = 72,657.74 : x
  2. Step 2: Convert to fraction form
    133,090.04/183,661.40 = 72,657.74/x
  3. Step 3: Cross multiply
    133,090.04x = 183,661.40 × 72,657.74
  4. Step 4: Simplify right side
    133,090.04x = 13,344,422,249.24
  5. Step 5: Solve for x
    x = 13,344,422,249.24/133,090.04
  6. Step 6: Final answer
    x = 100,266.12

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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.