Home / 112,774.59-155,621.64-61,787.25

Finding the Fourth Proportional to 112,774.59, 155,621.64 and 61,787.25

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Solution

The fourth proportional to 112,774.59, 155,621.64 and 61,787.25 is: 85,262.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,774.59 : 155,621.64 = 61,787.25 : x
  2. Step 2: Convert to fraction form
    112,774.59/155,621.64 = 61,787.25/x
  3. Step 3: Cross multiply
    112,774.59x = 155,621.64 × 61,787.25
  4. Step 4: Simplify right side
    112,774.59x = 9,615,433,176.09
  5. Step 5: Solve for x
    x = 9,615,433,176.09/112,774.59
  6. Step 6: Final answer
    x = 85,262.41

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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.