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Finding the Fourth Proportional to 163,962.70, 245,940.80 and 53,154.70

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Solution

The fourth proportional to 163,962.70, 245,940.80 and 53,154.70 is: 79,731.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,962.70 : 245,940.80 = 53,154.70 : x
  2. Step 2: Convert to fraction form
    163,962.70/245,940.80 = 53,154.70/x
  3. Step 3: Cross multiply
    163,962.70x = 245,940.80 × 53,154.70
  4. Step 4: Simplify right side
    163,962.70x = 13,072,909,441.76
  5. Step 5: Solve for x
    x = 13,072,909,441.76/163,962.70
  6. Step 6: Final answer
    x = 79,731.00

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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.