Home / 130,987.22-180,762.36-71,371.22

Finding the Fourth Proportional to 130,987.22, 180,762.36 and 71,371.22

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Solution

The fourth proportional to 130,987.22, 180,762.36 and 71,371.22 is: 98,492.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,987.22 : 180,762.36 = 71,371.22 : x
  2. Step 2: Convert to fraction form
    130,987.22/180,762.36 = 71,371.22/x
  3. Step 3: Cross multiply
    130,987.22x = 180,762.36 × 71,371.22
  4. Step 4: Simplify right side
    130,987.22x = 12,901,230,204.97
  5. Step 5: Solve for x
    x = 12,901,230,204.97/130,987.22
  6. Step 6: Final answer
    x = 98,492.28

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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.