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Finding the Fourth Proportional to 163,666.80, 245,655.72 and 84,837.60

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Solution

The fourth proportional to 163,666.80, 245,655.72 and 84,837.60 is: 127,337.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,666.80 : 245,655.72 = 84,837.60 : x
  2. Step 2: Convert to fraction form
    163,666.80/245,655.72 = 84,837.60/x
  3. Step 3: Cross multiply
    163,666.80x = 245,655.72 × 84,837.60
  4. Step 4: Simplify right side
    163,666.80x = 20,840,841,711.07
  5. Step 5: Solve for x
    x = 20,840,841,711.07/163,666.80
  6. Step 6: Final answer
    x = 127,337.01

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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.