Home / 117,155.14-161,674.86-63,440.16

Finding the Fourth Proportional to 117,155.14, 161,674.86 and 63,440.16

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Solution

The fourth proportional to 117,155.14, 161,674.86 and 63,440.16 is: 87,547.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,155.14 : 161,674.86 = 63,440.16 : x
  2. Step 2: Convert to fraction form
    117,155.14/161,674.86 = 63,440.16/x
  3. Step 3: Cross multiply
    117,155.14x = 161,674.86 × 63,440.16
  4. Step 4: Simplify right side
    117,155.14x = 10,256,677,860.80
  5. Step 5: Solve for x
    x = 10,256,677,860.80/117,155.14
  6. Step 6: Final answer
    x = 87,547.83

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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.