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Finding the Fourth Proportional to 130,043.88, 179,475.15 and 73,458.90

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Solution

The fourth proportional to 130,043.88, 179,475.15 and 73,458.90 is: 101,381.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,043.88 : 179,475.15 = 73,458.90 : x
  2. Step 2: Convert to fraction form
    130,043.88/179,475.15 = 73,458.90/x
  3. Step 3: Cross multiply
    130,043.88x = 179,475.15 × 73,458.90
  4. Step 4: Simplify right side
    130,043.88x = 13,184,047,096.34
  5. Step 5: Solve for x
    x = 13,184,047,096.34/130,043.88
  6. Step 6: Final answer
    x = 101,381.53

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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.