Home / 130,357.20-179,904.60-76,615.32

Finding the Fourth Proportional to 130,357.20, 179,904.60 and 76,615.32

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Solution

The fourth proportional to 130,357.20, 179,904.60 and 76,615.32 is: 105,736.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,357.20 : 179,904.60 = 76,615.32 : x
  2. Step 2: Convert to fraction form
    130,357.20/179,904.60 = 76,615.32/x
  3. Step 3: Cross multiply
    130,357.20x = 179,904.60 × 76,615.32
  4. Step 4: Simplify right side
    130,357.20x = 13,783,448,498.47
  5. Step 5: Solve for x
    x = 13,783,448,498.47/130,357.20
  6. Step 6: Final answer
    x = 105,736.00

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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.