Home / 130,990.10-180,766.92-76,545.41

Finding the Fourth Proportional to 130,990.10, 180,766.92 and 76,545.41

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Solution

The fourth proportional to 130,990.10, 180,766.92 and 76,545.41 is: 105,633.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,990.10 : 180,766.92 = 76,545.41 : x
  2. Step 2: Convert to fraction form
    130,990.10/180,766.92 = 76,545.41/x
  3. Step 3: Cross multiply
    130,990.10x = 180,766.92 × 76,545.41
  4. Step 4: Simplify right side
    130,990.10x = 13,836,877,389.05
  5. Step 5: Solve for x
    x = 13,836,877,389.05/130,990.10
  6. Step 6: Final answer
    x = 105,633.01

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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.