Home / 134,817.12-186,047.28-74,388.24

Finding the Fourth Proportional to 134,817.12, 186,047.28 and 74,388.24

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Solution

The fourth proportional to 134,817.12, 186,047.28 and 74,388.24 is: 102,655.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,817.12 : 186,047.28 = 74,388.24 : x
  2. Step 2: Convert to fraction form
    134,817.12/186,047.28 = 74,388.24/x
  3. Step 3: Cross multiply
    134,817.12x = 186,047.28 × 74,388.24
  4. Step 4: Simplify right side
    134,817.12x = 13,839,729,715.99
  5. Step 5: Solve for x
    x = 13,839,729,715.99/134,817.12
  6. Step 6: Final answer
    x = 102,655.58

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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.