Home / 130,447.51-180,017.97-76,031.88

Finding the Fourth Proportional to 130,447.51, 180,017.97 and 76,031.88

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Solution

The fourth proportional to 130,447.51, 180,017.97 and 76,031.88 is: 104,924.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,447.51 : 180,017.97 = 76,031.88 : x
  2. Step 2: Convert to fraction form
    130,447.51/180,017.97 = 76,031.88/x
  3. Step 3: Cross multiply
    130,447.51x = 180,017.97 × 76,031.88
  4. Step 4: Simplify right side
    130,447.51x = 13,687,103,732.70
  5. Step 5: Solve for x
    x = 13,687,103,732.70/130,447.51
  6. Step 6: Final answer
    x = 104,924.23

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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.