Home / 130,664.56-180,324.95-76,985.35

Finding the Fourth Proportional to 130,664.56, 180,324.95 and 76,985.35

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Solution

The fourth proportional to 130,664.56, 180,324.95 and 76,985.35 is: 106,244.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,664.56 : 180,324.95 = 76,985.35 : x
  2. Step 2: Convert to fraction form
    130,664.56/180,324.95 = 76,985.35/x
  3. Step 3: Cross multiply
    130,664.56x = 180,324.95 × 76,985.35
  4. Step 4: Simplify right side
    130,664.56x = 13,882,379,389.48
  5. Step 5: Solve for x
    x = 13,882,379,389.48/130,664.56
  6. Step 6: Final answer
    x = 106,244.41

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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.