Home / 130,330.90-179,899.41-76,613.32

Finding the Fourth Proportional to 130,330.90, 179,899.41 and 76,613.32

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Solution

The fourth proportional to 130,330.90, 179,899.41 and 76,613.32 is: 105,751.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,330.90 : 179,899.41 = 76,613.32 : x
  2. Step 2: Convert to fraction form
    130,330.90/179,899.41 = 76,613.32/x
  3. Step 3: Cross multiply
    130,330.90x = 179,899.41 × 76,613.32
  4. Step 4: Simplify right side
    130,330.90x = 13,782,691,066.14
  5. Step 5: Solve for x
    x = 13,782,691,066.14/130,330.90
  6. Step 6: Final answer
    x = 105,751.52

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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.