Home / 130,461.39-180,033.68-76,749.87

Finding the Fourth Proportional to 130,461.39, 180,033.68 and 76,749.87

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Solution

The fourth proportional to 130,461.39, 180,033.68 and 76,749.87 is: 105,913.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,461.39 : 180,033.68 = 76,749.87 : x
  2. Step 2: Convert to fraction form
    130,461.39/180,033.68 = 76,749.87/x
  3. Step 3: Cross multiply
    130,461.39x = 180,033.68 × 76,749.87
  4. Step 4: Simplify right side
    130,461.39x = 13,817,561,439.68
  5. Step 5: Solve for x
    x = 13,817,561,439.68/130,461.39
  6. Step 6: Final answer
    x = 105,913.03

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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.