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Finding the Fourth Proportional to 104,490.81, 144,241.47 and 70,545.28

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Solution

The fourth proportional to 104,490.81, 144,241.47 and 70,545.28 is: 97,382.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,490.81 : 144,241.47 = 70,545.28 : x
  2. Step 2: Convert to fraction form
    104,490.81/144,241.47 = 70,545.28/x
  3. Step 3: Cross multiply
    104,490.81x = 144,241.47 × 70,545.28
  4. Step 4: Simplify right side
    104,490.81x = 10,175,555,207.24
  5. Step 5: Solve for x
    x = 10,175,555,207.24/104,490.81
  6. Step 6: Final answer
    x = 97,382.29

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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.