Home / 112,682.12-155,606.67-72,465.71

Finding the Fourth Proportional to 112,682.12, 155,606.67 and 72,465.71

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Solution

The fourth proportional to 112,682.12, 155,606.67 and 72,465.71 is: 100,070.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,682.12 : 155,606.67 = 72,465.71 : x
  2. Step 2: Convert to fraction form
    112,682.12/155,606.67 = 72,465.71/x
  3. Step 3: Cross multiply
    112,682.12x = 155,606.67 × 72,465.71
  4. Step 4: Simplify right side
    112,682.12x = 11,276,147,044.25
  5. Step 5: Solve for x
    x = 11,276,147,044.25/112,682.12
  6. Step 6: Final answer
    x = 100,070.42

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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.