Home / 112,682.37-155,607.02-72,465.96

Finding the Fourth Proportional to 112,682.37, 155,607.02 and 72,465.96

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Solution

The fourth proportional to 112,682.37, 155,607.02 and 72,465.96 is: 100,070.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,682.37 : 155,607.02 = 72,465.96 : x
  2. Step 2: Convert to fraction form
    112,682.37/155,607.02 = 72,465.96/x
  3. Step 3: Cross multiply
    112,682.37x = 155,607.02 × 72,465.96
  4. Step 4: Simplify right side
    112,682.37x = 11,276,212,087.04
  5. Step 5: Solve for x
    x = 11,276,212,087.04/112,682.37
  6. Step 6: Final answer
    x = 100,070.77

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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.