Home / 157,120.96-235,718.40-51,939.92

Finding the Fourth Proportional to 157,120.96, 235,718.40 and 51,939.92

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Solution

The fourth proportional to 157,120.96, 235,718.40 and 51,939.92 is: 77,922.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,120.96 : 235,718.40 = 51,939.92 : x
  2. Step 2: Convert to fraction form
    157,120.96/235,718.40 = 51,939.92/x
  3. Step 3: Cross multiply
    157,120.96x = 235,718.40 × 51,939.92
  4. Step 4: Simplify right side
    157,120.96x = 12,243,194,838.53
  5. Step 5: Solve for x
    x = 12,243,194,838.53/157,120.96
  6. Step 6: Final answer
    x = 77,922.10

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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.