Home / 117,587.19-162,270.63-63,871.77

Finding the Fourth Proportional to 117,587.19, 162,270.63 and 63,871.77

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Solution

The fourth proportional to 117,587.19, 162,270.63 and 63,871.77 is: 88,143.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,587.19 : 162,270.63 = 63,871.77 : x
  2. Step 2: Convert to fraction form
    117,587.19/162,270.63 = 63,871.77/x
  3. Step 3: Cross multiply
    117,587.19x = 162,270.63 × 63,871.77
  4. Step 4: Simplify right side
    117,587.19x = 10,364,512,357.12
  5. Step 5: Solve for x
    x = 10,364,512,357.12/117,587.19
  6. Step 6: Final answer
    x = 88,143.21

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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.