Home / 130,619.12-180,256.35-73,271.15

Finding the Fourth Proportional to 130,619.12, 180,256.35 and 73,271.15

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Solution

The fourth proportional to 130,619.12, 180,256.35 and 73,271.15 is: 101,115.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,619.12 : 180,256.35 = 73,271.15 : x
  2. Step 2: Convert to fraction form
    130,619.12/180,256.35 = 73,271.15/x
  3. Step 3: Cross multiply
    130,619.12x = 180,256.35 × 73,271.15
  4. Step 4: Simplify right side
    130,619.12x = 13,207,590,108.75
  5. Step 5: Solve for x
    x = 13,207,590,108.75/130,619.12
  6. Step 6: Final answer
    x = 101,115.29

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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.