Home / 117,320.64-161,903.61-63,605.52

Finding the Fourth Proportional to 117,320.64, 161,903.61 and 63,605.52

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Solution

The fourth proportional to 117,320.64, 161,903.61 and 63,605.52 is: 87,776.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,320.64 : 161,903.61 = 63,605.52 : x
  2. Step 2: Convert to fraction form
    117,320.64/161,903.61 = 63,605.52/x
  3. Step 3: Cross multiply
    117,320.64x = 161,903.61 × 63,605.52
  4. Step 4: Simplify right side
    117,320.64x = 10,297,963,303.93
  5. Step 5: Solve for x
    x = 10,297,963,303.93/117,320.64
  6. Step 6: Final answer
    x = 87,776.23

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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.