Home / 102,944.25-154,125.09-65,411.28

Finding the Fourth Proportional to 102,944.25, 154,125.09 and 65,411.28

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Solution

The fourth proportional to 102,944.25, 154,125.09 and 65,411.28 is: 97,931.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,944.25 : 154,125.09 = 65,411.28 : x
  2. Step 2: Convert to fraction form
    102,944.25/154,125.09 = 65,411.28/x
  3. Step 3: Cross multiply
    102,944.25x = 154,125.09 × 65,411.28
  4. Step 4: Simplify right side
    102,944.25x = 10,081,519,417.02
  5. Step 5: Solve for x
    x = 10,081,519,417.02/102,944.25
  6. Step 6: Final answer
    x = 97,931.84

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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.