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Finding the Fourth Proportional to 130,298.88, 179,812.80 and 70,682.88

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Solution

The fourth proportional to 130,298.88, 179,812.80 and 70,682.88 is: 97,542.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,298.88 : 179,812.80 = 70,682.88 : x
  2. Step 2: Convert to fraction form
    130,298.88/179,812.80 = 70,682.88/x
  3. Step 3: Cross multiply
    130,298.88x = 179,812.80 × 70,682.88
  4. Step 4: Simplify right side
    130,298.88x = 12,709,686,564.86
  5. Step 5: Solve for x
    x = 12,709,686,564.86/130,298.88
  6. Step 6: Final answer
    x = 97,542.56

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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.