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Finding the Fourth Proportional to 130,391.88, 179,941.36 and 73,814.16

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Solution

The fourth proportional to 130,391.88, 179,941.36 and 73,814.16 is: 101,863.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,391.88 : 179,941.36 = 73,814.16 : x
  2. Step 2: Convert to fraction form
    130,391.88/179,941.36 = 73,814.16/x
  3. Step 3: Cross multiply
    130,391.88x = 179,941.36 × 73,814.16
  4. Step 4: Simplify right side
    130,391.88x = 13,282,220,337.66
  5. Step 5: Solve for x
    x = 13,282,220,337.66/130,391.88
  6. Step 6: Final answer
    x = 101,863.86

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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.