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Finding the Fourth Proportional to 130,200.57, 179,677.86 and 70,584.57

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Solution

The fourth proportional to 130,200.57, 179,677.86 and 70,584.57 is: 97,407.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,200.57 : 179,677.86 = 70,584.57 : x
  2. Step 2: Convert to fraction form
    130,200.57/179,677.86 = 70,584.57/x
  3. Step 3: Cross multiply
    130,200.57x = 179,677.86 × 70,584.57
  4. Step 4: Simplify right side
    130,200.57x = 12,682,484,486.62
  5. Step 5: Solve for x
    x = 12,682,484,486.62/130,200.57
  6. Step 6: Final answer
    x = 97,407.29

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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.