Home / 163,056.12-225,012.75-99,370.68

Finding the Fourth Proportional to 163,056.12, 225,012.75 and 99,370.68

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Solution

The fourth proportional to 163,056.12, 225,012.75 and 99,370.68 is: 137,128.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,056.12 : 225,012.75 = 99,370.68 : x
  2. Step 2: Convert to fraction form
    163,056.12/225,012.75 = 99,370.68/x
  3. Step 3: Cross multiply
    163,056.12x = 225,012.75 × 99,370.68
  4. Step 4: Simplify right side
    163,056.12x = 22,359,669,976.17
  5. Step 5: Solve for x
    x = 22,359,669,976.17/163,056.12
  6. Step 6: Final answer
    x = 137,128.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.