Home / 130,920.88-180,666.09-80,018.80

Finding the Fourth Proportional to 130,920.88, 180,666.09 and 80,018.80

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Solution

The fourth proportional to 130,920.88, 180,666.09 and 80,018.80 is: 110,423.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,920.88 : 180,666.09 = 80,018.80 : x
  2. Step 2: Convert to fraction form
    130,920.88/180,666.09 = 80,018.80/x
  3. Step 3: Cross multiply
    130,920.88x = 180,666.09 × 80,018.80
  4. Step 4: Simplify right side
    130,920.88x = 14,456,683,722.49
  5. Step 5: Solve for x
    x = 14,456,683,722.49/130,920.88
  6. Step 6: Final answer
    x = 110,423.06

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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.