Home / 130,946.51-180,727.92-77,244.72

Finding the Fourth Proportional to 130,946.51, 180,727.92 and 77,244.72

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Solution

The fourth proportional to 130,946.51, 180,727.92 and 77,244.72 is: 106,610.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,946.51 : 180,727.92 = 77,244.72 : x
  2. Step 2: Convert to fraction form
    130,946.51/180,727.92 = 77,244.72/x
  3. Step 3: Cross multiply
    130,946.51x = 180,727.92 × 77,244.72
  4. Step 4: Simplify right side
    130,946.51x = 13,960,277,576.58
  5. Step 5: Solve for x
    x = 13,960,277,576.58/130,946.51
  6. Step 6: Final answer
    x = 106,610.54

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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.