Home / 102,721.64-153,864.41-67,056.93

Finding the Fourth Proportional to 102,721.64, 153,864.41 and 67,056.93

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Solution

The fourth proportional to 102,721.64, 153,864.41 and 67,056.93 is: 100,443.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,721.64 : 153,864.41 = 67,056.93 : x
  2. Step 2: Convert to fraction form
    102,721.64/153,864.41 = 67,056.93/x
  3. Step 3: Cross multiply
    102,721.64x = 153,864.41 × 67,056.93
  4. Step 4: Simplify right side
    102,721.64x = 10,317,674,635.58
  5. Step 5: Solve for x
    x = 10,317,674,635.58/102,721.64
  6. Step 6: Final answer
    x = 100,443.05

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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.