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Finding the Fourth Proportional to 117,365.80, 175,854.30 and 99,869.80

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Solution

The fourth proportional to 117,365.80, 175,854.30 and 99,869.80 is: 149,639.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,365.80 : 175,854.30 = 99,869.80 : x
  2. Step 2: Convert to fraction form
    117,365.80/175,854.30 = 99,869.80/x
  3. Step 3: Cross multiply
    117,365.80x = 175,854.30 × 99,869.80
  4. Step 4: Simplify right side
    117,365.80x = 17,562,533,770.14
  5. Step 5: Solve for x
    x = 17,562,533,770.14/117,365.80
  6. Step 6: Final answer
    x = 149,639.28

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1.5x scale

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.