Home / 112,486.60-155,231.66-64,739.94

Finding the Fourth Proportional to 112,486.60, 155,231.66 and 64,739.94

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Solution

The fourth proportional to 112,486.60, 155,231.66 and 64,739.94 is: 89,341.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,486.60 : 155,231.66 = 64,739.94 : x
  2. Step 2: Convert to fraction form
    112,486.60/155,231.66 = 64,739.94/x
  3. Step 3: Cross multiply
    112,486.60x = 155,231.66 × 64,739.94
  4. Step 4: Simplify right side
    112,486.60x = 10,049,688,354.50
  5. Step 5: Solve for x
    x = 10,049,688,354.50/112,486.60
  6. Step 6: Final answer
    x = 89,341.20

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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.