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Finding the Fourth Proportional to 130,237, 179,727.14 and 70,621

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Solution

The fourth proportional to 130,237, 179,727.14 and 70,621 is: 97,457.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,237 : 179,727.14 = 70,621 : x
  2. Step 2: Convert to fraction form
    130,237/179,727.14 = 70,621/x
  3. Step 3: Cross multiply
    130,237x = 179,727.14 × 70,621
  4. Step 4: Simplify right side
    130,237x = 12,692,510,353.94
  5. Step 5: Solve for x
    x = 12,692,510,353.94/130,237
  6. Step 6: Final answer
    x = 97,457.02

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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.