Home / 130,034.64-179,417.34-76,316.88

Finding the Fourth Proportional to 130,034.64, 179,417.34 and 76,316.88

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Solution

The fourth proportional to 130,034.64, 179,417.34 and 76,316.88 is: 105,299.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,034.64 : 179,417.34 = 76,316.88 : x
  2. Step 2: Convert to fraction form
    130,034.64/179,417.34 = 76,316.88/x
  3. Step 3: Cross multiply
    130,034.64x = 179,417.34 × 76,316.88
  4. Step 4: Simplify right side
    130,034.64x = 13,692,571,606.70
  5. Step 5: Solve for x
    x = 13,692,571,606.70/130,034.64
  6. Step 6: Final answer
    x = 105,299.42

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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.