Home / 118,430.96-163,432.74-64,714.82

Finding the Fourth Proportional to 118,430.96, 163,432.74 and 64,714.82

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Solution

The fourth proportional to 118,430.96, 163,432.74 and 64,714.82 is: 89,305.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,430.96 : 163,432.74 = 64,714.82 : x
  2. Step 2: Convert to fraction form
    118,430.96/163,432.74 = 64,714.82/x
  3. Step 3: Cross multiply
    118,430.96x = 163,432.74 × 64,714.82
  4. Step 4: Simplify right side
    118,430.96x = 10,576,520,351.21
  5. Step 5: Solve for x
    x = 10,576,520,351.21/118,430.96
  6. Step 6: Final answer
    x = 89,305.37

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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.