Home / 112,979.16-155,910.42-62,678.16

Finding the Fourth Proportional to 112,979.16, 155,910.42 and 62,678.16

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Solution

The fourth proportional to 112,979.16, 155,910.42 and 62,678.16 is: 86,495.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,979.16 : 155,910.42 = 62,678.16 : x
  2. Step 2: Convert to fraction form
    112,979.16/155,910.42 = 62,678.16/x
  3. Step 3: Cross multiply
    112,979.16x = 155,910.42 × 62,678.16
  4. Step 4: Simplify right side
    112,979.16x = 9,772,178,250.43
  5. Step 5: Solve for x
    x = 9,772,178,250.43/112,979.16
  6. Step 6: Final answer
    x = 86,495.41

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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.