Home / 117,740.16-162,528.48-72,436.68

Finding the Fourth Proportional to 117,740.16, 162,528.48 and 72,436.68

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Solution

The fourth proportional to 117,740.16, 162,528.48 and 72,436.68 is: 99,991.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,740.16 : 162,528.48 = 72,436.68 : x
  2. Step 2: Convert to fraction form
    117,740.16/162,528.48 = 72,436.68/x
  3. Step 3: Cross multiply
    117,740.16x = 162,528.48 × 72,436.68
  4. Step 4: Simplify right side
    117,740.16x = 11,773,023,496.65
  5. Step 5: Solve for x
    x = 11,773,023,496.65/117,740.16
  6. Step 6: Final answer
    x = 99,991.57

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Why These Related Problems?

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