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Finding the Fourth Proportional to 163,558.80, 245,208.60 and 89,686.80

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Solution

The fourth proportional to 163,558.80, 245,208.60 and 89,686.80 is: 134,459.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,558.80 : 245,208.60 = 89,686.80 : x
  2. Step 2: Convert to fraction form
    163,558.80/245,208.60 = 89,686.80/x
  3. Step 3: Cross multiply
    163,558.80x = 245,208.60 × 89,686.80
  4. Step 4: Simplify right side
    163,558.80x = 21,991,974,666.48
  5. Step 5: Solve for x
    x = 21,991,974,666.48/163,558.80
  6. Step 6: Final answer
    x = 134,459.13

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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.