Home / 130,319.42-179,821.68-72,955.76

Finding the Fourth Proportional to 130,319.42, 179,821.68 and 72,955.76

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Solution

The fourth proportional to 130,319.42, 179,821.68 and 72,955.76 is: 100,668.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,319.42 : 179,821.68 = 72,955.76 : x
  2. Step 2: Convert to fraction form
    130,319.42/179,821.68 = 72,955.76/x
  3. Step 3: Cross multiply
    130,319.42x = 179,821.68 × 72,955.76
  4. Step 4: Simplify right side
    130,319.42x = 13,119,027,328.88
  5. Step 5: Solve for x
    x = 13,119,027,328.88/130,319.42
  6. Step 6: Final answer
    x = 100,668.25

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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.