Home / 112,517.51-155,272.65-64,122.32

Finding the Fourth Proportional to 112,517.51, 155,272.65 and 64,122.32

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Solution

The fourth proportional to 112,517.51, 155,272.65 and 64,122.32 is: 88,487.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,517.51 : 155,272.65 = 64,122.32 : x
  2. Step 2: Convert to fraction form
    112,517.51/155,272.65 = 64,122.32/x
  3. Step 3: Cross multiply
    112,517.51x = 155,272.65 × 64,122.32
  4. Step 4: Simplify right side
    112,517.51x = 9,956,441,774.18
  5. Step 5: Solve for x
    x = 9,956,441,774.18/112,517.51
  6. Step 6: Final answer
    x = 88,487.94

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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.