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Finding the Fourth Proportional to 157,136.84, 235,742.16 and 51,955.80

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Solution

The fourth proportional to 157,136.84, 235,742.16 and 51,955.80 is: 77,945.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,136.84 : 235,742.16 = 51,955.80 : x
  2. Step 2: Convert to fraction form
    157,136.84/235,742.16 = 51,955.80/x
  3. Step 3: Cross multiply
    157,136.84x = 235,742.16 × 51,955.80
  4. Step 4: Simplify right side
    157,136.84x = 12,248,172,516.53
  5. Step 5: Solve for x
    x = 12,248,172,516.53/157,136.84
  6. Step 6: Final answer
    x = 77,945.90

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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.