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Finding the Fourth Proportional to 130,391.98, 179,952.34 and 73,030.40

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Solution

The fourth proportional to 130,391.98, 179,952.34 and 73,030.40 is: 100,788.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,391.98 : 179,952.34 = 73,030.40 : x
  2. Step 2: Convert to fraction form
    130,391.98/179,952.34 = 73,030.40/x
  3. Step 3: Cross multiply
    130,391.98x = 179,952.34 × 73,030.40
  4. Step 4: Simplify right side
    130,391.98x = 13,141,991,371.14
  5. Step 5: Solve for x
    x = 13,141,991,371.14/130,391.98
  6. Step 6: Final answer
    x = 100,788.34

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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.