Home / 130,638.88-180,288.76-73,296.34

Finding the Fourth Proportional to 130,638.88, 180,288.76 and 73,296.34

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Solution

The fourth proportional to 130,638.88, 180,288.76 and 73,296.34 is: 101,152.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,638.88 : 180,288.76 = 73,296.34 : x
  2. Step 2: Convert to fraction form
    130,638.88/180,288.76 = 73,296.34/x
  3. Step 3: Cross multiply
    130,638.88x = 180,288.76 × 73,296.34
  4. Step 4: Simplify right side
    130,638.88x = 13,214,506,251.14
  5. Step 5: Solve for x
    x = 13,214,506,251.14/130,638.88
  6. Step 6: Final answer
    x = 101,152.94

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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.