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Finding the Fourth Proportional to 139,465.17, 209,110.10 and 101,528.01

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Solution

The fourth proportional to 139,465.17, 209,110.10 and 101,528.01 is: 152,228.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,465.17 : 209,110.10 = 101,528.01 : x
  2. Step 2: Convert to fraction form
    139,465.17/209,110.10 = 101,528.01/x
  3. Step 3: Cross multiply
    139,465.17x = 209,110.10 × 101,528.01
  4. Step 4: Simplify right side
    139,465.17x = 21,230,531,816.26
  5. Step 5: Solve for x
    x = 21,230,531,816.26/139,465.17
  6. Step 6: Final answer
    x = 152,228.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.