Home / 112,494.01-155,243.39-76,206.55

Finding the Fourth Proportional to 112,494.01, 155,243.39 and 76,206.55

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Solution

The fourth proportional to 112,494.01, 155,243.39 and 76,206.55 is: 105,166.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,494.01 : 155,243.39 = 76,206.55 : x
  2. Step 2: Convert to fraction form
    112,494.01/155,243.39 = 76,206.55/x
  3. Step 3: Cross multiply
    112,494.01x = 155,243.39 × 76,206.55
  4. Step 4: Simplify right side
    112,494.01x = 11,830,563,261.00
  5. Step 5: Solve for x
    x = 11,830,563,261.00/112,494.01
  6. Step 6: Final answer
    x = 105,166.16

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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.