Home / 130,619.85-180,257.45-73,271.92

Finding the Fourth Proportional to 130,619.85, 180,257.45 and 73,271.92

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Solution

The fourth proportional to 130,619.85, 180,257.45 and 73,271.92 is: 101,116.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,619.85 : 180,257.45 = 73,271.92 : x
  2. Step 2: Convert to fraction form
    130,619.85/180,257.45 = 73,271.92/x
  3. Step 3: Cross multiply
    130,619.85x = 180,257.45 × 73,271.92
  4. Step 4: Simplify right side
    130,619.85x = 13,207,808,188.16
  5. Step 5: Solve for x
    x = 13,207,808,188.16/130,619.85
  6. Step 6: Final answer
    x = 101,116.40

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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.