Home / 130,532.34-180,131.13-76,820.52

Finding the Fourth Proportional to 130,532.34, 180,131.13 and 76,820.52

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Solution

The fourth proportional to 130,532.34, 180,131.13 and 76,820.52 is: 106,010.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,532.34 : 180,131.13 = 76,820.52 : x
  2. Step 2: Convert to fraction form
    130,532.34/180,131.13 = 76,820.52/x
  3. Step 3: Cross multiply
    130,532.34x = 180,131.13 × 76,820.52
  4. Step 4: Simplify right side
    130,532.34x = 13,837,767,074.79
  5. Step 5: Solve for x
    x = 13,837,767,074.79/130,532.34
  6. Step 6: Final answer
    x = 106,010.26

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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.