Home / 157,278.81-236,019.70-57,430.64

Finding the Fourth Proportional to 157,278.81, 236,019.70 and 57,430.64

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Solution

The fourth proportional to 157,278.81, 236,019.70 and 57,430.64 is: 86,183.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,278.81 : 236,019.70 = 57,430.64 : x
  2. Step 2: Convert to fraction form
    157,278.81/236,019.70 = 57,430.64/x
  3. Step 3: Cross multiply
    157,278.81x = 236,019.70 × 57,430.64
  4. Step 4: Simplify right side
    157,278.81x = 13,554,761,977.14
  5. Step 5: Solve for x
    x = 13,554,761,977.14/157,278.81
  6. Step 6: Final answer
    x = 86,183.02

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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.