Home / 157,288.56-217,064.40-90,233.52

Finding the Fourth Proportional to 157,288.56, 217,064.40 and 90,233.52

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Solution

The fourth proportional to 157,288.56, 217,064.40 and 90,233.52 is: 124,525.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,288.56 : 217,064.40 = 90,233.52 : x
  2. Step 2: Convert to fraction form
    157,288.56/217,064.40 = 90,233.52/x
  3. Step 3: Cross multiply
    157,288.56x = 217,064.40 × 90,233.52
  4. Step 4: Simplify right side
    157,288.56x = 19,586,484,878.69
  5. Step 5: Solve for x
    x = 19,586,484,878.69/157,288.56
  6. Step 6: Final answer
    x = 124,525.81

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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.