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Finding the Fourth Proportional to 130,376.25, 179,919.23 and 70,760.25

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Solution

The fourth proportional to 130,376.25, 179,919.23 and 70,760.25 is: 97,649.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,376.25 : 179,919.23 = 70,760.25 : x
  2. Step 2: Convert to fraction form
    130,376.25/179,919.23 = 70,760.25/x
  3. Step 3: Cross multiply
    130,376.25x = 179,919.23 × 70,760.25
  4. Step 4: Simplify right side
    130,376.25x = 12,731,129,340.81
  5. Step 5: Solve for x
    x = 12,731,129,340.81/130,376.25
  6. Step 6: Final answer
    x = 97,649.15

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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.