Home / 135,330.08-186,934-103,887.52

Finding the Fourth Proportional to 135,330.08, 186,934 and 103,887.52

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Solution

The fourth proportional to 135,330.08, 186,934 and 103,887.52 is: 143,501.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,330.08 : 186,934 = 103,887.52 : x
  2. Step 2: Convert to fraction form
    135,330.08/186,934 = 103,887.52/x
  3. Step 3: Cross multiply
    135,330.08x = 186,934 × 103,887.52
  4. Step 4: Simplify right side
    135,330.08x = 19,420,109,663.68
  5. Step 5: Solve for x
    x = 19,420,109,663.68/135,330.08
  6. Step 6: Final answer
    x = 143,501.80

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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.