Home / 112,579.02-155,360.19-61,590.63

Finding the Fourth Proportional to 112,579.02, 155,360.19 and 61,590.63

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Solution

The fourth proportional to 112,579.02, 155,360.19 and 61,590.63 is: 84,995.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,579.02 : 155,360.19 = 61,590.63 : x
  2. Step 2: Convert to fraction form
    112,579.02/155,360.19 = 61,590.63/x
  3. Step 3: Cross multiply
    112,579.02x = 155,360.19 × 61,590.63
  4. Step 4: Simplify right side
    112,579.02x = 9,568,731,856.64
  5. Step 5: Solve for x
    x = 9,568,731,856.64/112,579.02
  6. Step 6: Final answer
    x = 84,995.70

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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.