Home / 157,521.12-236,111.58-77,614.68

Finding the Fourth Proportional to 157,521.12, 236,111.58 and 77,614.68

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Solution

The fourth proportional to 157,521.12, 236,111.58 and 77,614.68 is: 116,338.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,521.12 : 236,111.58 = 77,614.68 : x
  2. Step 2: Convert to fraction form
    157,521.12/236,111.58 = 77,614.68/x
  3. Step 3: Cross multiply
    157,521.12x = 236,111.58 × 77,614.68
  4. Step 4: Simplify right side
    157,521.12x = 18,325,724,725.99
  5. Step 5: Solve for x
    x = 18,325,724,725.99/157,521.12
  6. Step 6: Final answer
    x = 116,338.21

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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.