Home / 118,207.81-163,126.38-64,492.84

Finding the Fourth Proportional to 118,207.81, 163,126.38 and 64,492.84

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Solution

The fourth proportional to 118,207.81, 163,126.38 and 64,492.84 is: 88,999.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,207.81 : 163,126.38 = 64,492.84 : x
  2. Step 2: Convert to fraction form
    118,207.81/163,126.38 = 64,492.84/x
  3. Step 3: Cross multiply
    118,207.81x = 163,126.38 × 64,492.84
  4. Step 4: Simplify right side
    118,207.81x = 10,520,483,525.12
  5. Step 5: Solve for x
    x = 10,520,483,525.12/118,207.81
  6. Step 6: Final answer
    x = 88,999.90

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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.