Home / 130,474.56-180,050.08-70,857.28

Finding the Fourth Proportional to 130,474.56, 180,050.08 and 70,857.28

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Solution

The fourth proportional to 130,474.56, 180,050.08 and 70,857.28 is: 97,780.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,474.56 : 180,050.08 = 70,857.28 : x
  2. Step 2: Convert to fraction form
    130,474.56/180,050.08 = 70,857.28/x
  3. Step 3: Cross multiply
    130,474.56x = 180,050.08 × 70,857.28
  4. Step 4: Simplify right side
    130,474.56x = 12,757,858,932.58
  5. Step 5: Solve for x
    x = 12,757,858,932.58/130,474.56
  6. Step 6: Final answer
    x = 97,780.43

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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.