Home / 157,558.38-217,510.83-121,667.82

Finding the Fourth Proportional to 157,558.38, 217,510.83 and 121,667.82

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Solution

The fourth proportional to 157,558.38, 217,510.83 and 121,667.82 is: 167,963.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,558.38 : 217,510.83 = 121,667.82 : x
  2. Step 2: Convert to fraction form
    157,558.38/217,510.83 = 121,667.82/x
  3. Step 3: Cross multiply
    157,558.38x = 217,510.83 × 121,667.82
  4. Step 4: Simplify right side
    157,558.38x = 26,464,068,512.49
  5. Step 5: Solve for x
    x = 26,464,068,512.49/157,558.38
  6. Step 6: Final answer
    x = 167,963.57

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1.5x scale

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.