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Finding the Fourth Proportional to 130,168.75, 179,633 and 70,552.75

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Solution

The fourth proportional to 130,168.75, 179,633 and 70,552.75 is: 97,362.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,168.75 : 179,633 = 70,552.75 : x
  2. Step 2: Convert to fraction form
    130,168.75/179,633 = 70,552.75/x
  3. Step 3: Cross multiply
    130,168.75x = 179,633 × 70,552.75
  4. Step 4: Simplify right side
    130,168.75x = 12,673,602,140.75
  5. Step 5: Solve for x
    x = 12,673,602,140.75/130,168.75
  6. Step 6: Final answer
    x = 97,362.86

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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.