Home / 157,928.16-217,941.73-89,018.69

Finding the Fourth Proportional to 157,928.16, 217,941.73 and 89,018.69

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Solution

The fourth proportional to 157,928.16, 217,941.73 and 89,018.69 is: 122,846.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,928.16 : 217,941.73 = 89,018.69 : x
  2. Step 2: Convert to fraction form
    157,928.16/217,941.73 = 89,018.69/x
  3. Step 3: Cross multiply
    157,928.16x = 217,941.73 × 89,018.69
  4. Step 4: Simplify right side
    157,928.16x = 19,400,887,381.51
  5. Step 5: Solve for x
    x = 19,400,887,381.51/157,928.16
  6. Step 6: Final answer
    x = 122,846.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.