Home / 118,538.64-163,582.74-64,822.68

Finding the Fourth Proportional to 118,538.64, 163,582.74 and 64,822.68

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Solution

The fourth proportional to 118,538.64, 163,582.74 and 64,822.68 is: 89,454.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,538.64 : 163,582.74 = 64,822.68 : x
  2. Step 2: Convert to fraction form
    118,538.64/163,582.74 = 64,822.68/x
  3. Step 3: Cross multiply
    118,538.64x = 163,582.74 × 64,822.68
  4. Step 4: Simplify right side
    118,538.64x = 10,603,871,608.54
  5. Step 5: Solve for x
    x = 10,603,871,608.54/118,538.64
  6. Step 6: Final answer
    x = 89,454.98

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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.