Home / 112,380.66-155,090.04-64,634.07

Finding the Fourth Proportional to 112,380.66, 155,090.04 and 64,634.07

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Solution

The fourth proportional to 112,380.66, 155,090.04 and 64,634.07 is: 89,197.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,380.66 : 155,090.04 = 64,634.07 : x
  2. Step 2: Convert to fraction form
    112,380.66/155,090.04 = 64,634.07/x
  3. Step 3: Cross multiply
    112,380.66x = 155,090.04 × 64,634.07
  4. Step 4: Simplify right side
    112,380.66x = 10,024,100,501.66
  5. Step 5: Solve for x
    x = 10,024,100,501.66/112,380.66
  6. Step 6: Final answer
    x = 89,197.74

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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.