Home / 134,750.74-185,955.65-77,393.78

Finding the Fourth Proportional to 134,750.74, 185,955.65 and 77,393.78

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Solution

The fourth proportional to 134,750.74, 185,955.65 and 77,393.78 is: 106,803.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,750.74 : 185,955.65 = 77,393.78 : x
  2. Step 2: Convert to fraction form
    134,750.74/185,955.65 = 77,393.78/x
  3. Step 3: Cross multiply
    134,750.74x = 185,955.65 × 77,393.78
  4. Step 4: Simplify right side
    134,750.74x = 14,391,810,336.67
  5. Step 5: Solve for x
    x = 14,391,810,336.67/134,750.74
  6. Step 6: Final answer
    x = 106,803.20

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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.