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Finding the Fourth Proportional to 130,298.64, 179,749.80 and 75,850.80

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Solution

The fourth proportional to 130,298.64, 179,749.80 and 75,850.80 is: 104,637.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,298.64 : 179,749.80 = 75,850.80 : x
  2. Step 2: Convert to fraction form
    130,298.64/179,749.80 = 75,850.80/x
  3. Step 3: Cross multiply
    130,298.64x = 179,749.80 × 75,850.80
  4. Step 4: Simplify right side
    130,298.64x = 13,634,166,129.84
  5. Step 5: Solve for x
    x = 13,634,166,129.84/130,298.64
  6. Step 6: Final answer
    x = 104,637.82

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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.