Home / 112,967.42-155,889.86-61,979.04

Finding the Fourth Proportional to 112,967.42, 155,889.86 and 61,979.04

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Solution

The fourth proportional to 112,967.42, 155,889.86 and 61,979.04 is: 85,528.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,967.42 : 155,889.86 = 61,979.04 : x
  2. Step 2: Convert to fraction form
    112,967.42/155,889.86 = 61,979.04/x
  3. Step 3: Cross multiply
    112,967.42x = 155,889.86 × 61,979.04
  4. Step 4: Simplify right side
    112,967.42x = 9,661,903,558.64
  5. Step 5: Solve for x
    x = 9,661,903,558.64/112,967.42
  6. Step 6: Final answer
    x = 85,528.23

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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.