Home / 112,418.01-155,134.98-61,429.64

Finding the Fourth Proportional to 112,418.01, 155,134.98 and 61,429.64

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Solution

The fourth proportional to 112,418.01, 155,134.98 and 61,429.64 is: 84,771.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,418.01 : 155,134.98 = 61,429.64 : x
  2. Step 2: Convert to fraction form
    112,418.01/155,134.98 = 61,429.64/x
  3. Step 3: Cross multiply
    112,418.01x = 155,134.98 × 61,429.64
  4. Step 4: Simplify right side
    112,418.01x = 9,529,885,197.13
  5. Step 5: Solve for x
    x = 9,529,885,197.13/112,418.01
  6. Step 6: Final answer
    x = 84,771.87

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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.