Home / 134,887.11-186,144.25-74,457.80

Finding the Fourth Proportional to 134,887.11, 186,144.25 and 74,457.80

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Solution

The fourth proportional to 134,887.11, 186,144.25 and 74,457.80 is: 102,751.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,887.11 : 186,144.25 = 74,457.80 : x
  2. Step 2: Convert to fraction form
    134,887.11/186,144.25 = 74,457.80/x
  3. Step 3: Cross multiply
    134,887.11x = 186,144.25 × 74,457.80
  4. Step 4: Simplify right side
    134,887.11x = 13,859,891,337.65
  5. Step 5: Solve for x
    x = 13,859,891,337.65/134,887.11
  6. Step 6: Final answer
    x = 102,751.79

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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.