Home / 112,879-155,774.10-62,579.08

Finding the Fourth Proportional to 112,879, 155,774.10 and 62,579.08

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Solution

The fourth proportional to 112,879, 155,774.10 and 62,579.08 is: 86,359.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,879 : 155,774.10 = 62,579.08 : x
  2. Step 2: Convert to fraction form
    112,879/155,774.10 = 62,579.08/x
  3. Step 3: Cross multiply
    112,879x = 155,774.10 × 62,579.08
  4. Step 4: Simplify right side
    112,879x = 9,748,199,865.83
  5. Step 5: Solve for x
    x = 9,748,199,865.83/112,879
  6. Step 6: Final answer
    x = 86,359.73

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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.