Home / 117,126.16-161,632.98-63,409.78

Finding the Fourth Proportional to 117,126.16, 161,632.98 and 63,409.78

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Solution

The fourth proportional to 117,126.16, 161,632.98 and 63,409.78 is: 87,504.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,126.16 : 161,632.98 = 63,409.78 : x
  2. Step 2: Convert to fraction form
    117,126.16/161,632.98 = 63,409.78/x
  3. Step 3: Cross multiply
    117,126.16x = 161,632.98 × 63,409.78
  4. Step 4: Simplify right side
    117,126.16x = 10,249,111,702.54
  5. Step 5: Solve for x
    x = 10,249,111,702.54/117,126.16
  6. Step 6: Final answer
    x = 87,504.89

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1.5x scale

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.