Home / 130,523.40-180,147.24-76,810.68

Finding the Fourth Proportional to 130,523.40, 180,147.24 and 76,810.68

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Solution

The fourth proportional to 130,523.40, 180,147.24 and 76,810.68 is: 106,013.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,523.40 : 180,147.24 = 76,810.68 : x
  2. Step 2: Convert to fraction form
    130,523.40/180,147.24 = 76,810.68/x
  3. Step 3: Cross multiply
    130,523.40x = 180,147.24 × 76,810.68
  4. Step 4: Simplify right side
    130,523.40x = 13,837,232,004.52
  5. Step 5: Solve for x
    x = 13,837,232,004.52/130,523.40
  6. Step 6: Final answer
    x = 106,013.42

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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.