Home / 135,313.86-186,728.51-74,887.04

Finding the Fourth Proportional to 135,313.86, 186,728.51 and 74,887.04

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Solution

The fourth proportional to 135,313.86, 186,728.51 and 74,887.04 is: 103,341.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,313.86 : 186,728.51 = 74,887.04 : x
  2. Step 2: Convert to fraction form
    135,313.86/186,728.51 = 74,887.04/x
  3. Step 3: Cross multiply
    135,313.86x = 186,728.51 × 74,887.04
  4. Step 4: Simplify right side
    135,313.86x = 13,983,545,397.51
  5. Step 5: Solve for x
    x = 13,983,545,397.51/135,313.86
  6. Step 6: Final answer
    x = 103,341.56

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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.