Home / 134,308.86-185,337.09-77,728.74

Finding the Fourth Proportional to 134,308.86, 185,337.09 and 77,728.74

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Solution

The fourth proportional to 134,308.86, 185,337.09 and 77,728.74 is: 107,260.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,308.86 : 185,337.09 = 77,728.74 : x
  2. Step 2: Convert to fraction form
    134,308.86/185,337.09 = 77,728.74/x
  3. Step 3: Cross multiply
    134,308.86x = 185,337.09 × 77,728.74
  4. Step 4: Simplify right side
    134,308.86x = 14,406,018,480.97
  5. Step 5: Solve for x
    x = 14,406,018,480.97/134,308.86
  6. Step 6: Final answer
    x = 107,260.37

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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.