Home / 133,255.28-183,886.76-72,828.01

Finding the Fourth Proportional to 133,255.28, 183,886.76 and 72,828.01

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Solution

The fourth proportional to 133,255.28, 183,886.76 and 72,828.01 is: 100,499.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,255.28 : 183,886.76 = 72,828.01 : x
  2. Step 2: Convert to fraction form
    133,255.28/183,886.76 = 72,828.01/x
  3. Step 3: Cross multiply
    133,255.28x = 183,886.76 × 72,828.01
  4. Step 4: Simplify right side
    133,255.28x = 13,392,106,798.42
  5. Step 5: Solve for x
    x = 13,392,106,798.42/133,255.28
  6. Step 6: Final answer
    x = 100,499.64

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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.