Home / 118,347.57-163,319.90-64,633.77

Finding the Fourth Proportional to 118,347.57, 163,319.90 and 64,633.77

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Solution

The fourth proportional to 118,347.57, 163,319.90 and 64,633.77 is: 89,194.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,347.57 : 163,319.90 = 64,633.77 : x
  2. Step 2: Convert to fraction form
    118,347.57/163,319.90 = 64,633.77/x
  3. Step 3: Cross multiply
    118,347.57x = 163,319.90 × 64,633.77
  4. Step 4: Simplify right side
    118,347.57x = 10,555,980,529.85
  5. Step 5: Solve for x
    x = 10,555,980,529.85/118,347.57
  6. Step 6: Final answer
    x = 89,194.74

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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.