Home / 134,331.35-185,403.77-77,009.17

Finding the Fourth Proportional to 134,331.35, 185,403.77 and 77,009.17

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Solution

The fourth proportional to 134,331.35, 185,403.77 and 77,009.17 is: 106,287.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,331.35 : 185,403.77 = 77,009.17 : x
  2. Step 2: Convert to fraction form
    134,331.35/185,403.77 = 77,009.17/x
  3. Step 3: Cross multiply
    134,331.35x = 185,403.77 × 77,009.17
  4. Step 4: Simplify right side
    134,331.35x = 14,277,789,594.02
  5. Step 5: Solve for x
    x = 14,277,789,594.02/134,331.35
  6. Step 6: Final answer
    x = 106,287.84

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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.