Home / 134,740.95-185,947.13-74,313.45

Finding the Fourth Proportional to 134,740.95, 185,947.13 and 74,313.45

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Solution

The fourth proportional to 134,740.95, 185,947.13 and 74,313.45 is: 102,555.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,740.95 : 185,947.13 = 74,313.45 : x
  2. Step 2: Convert to fraction form
    134,740.95/185,947.13 = 74,313.45/x
  3. Step 3: Cross multiply
    134,740.95x = 185,947.13 × 74,313.45
  4. Step 4: Simplify right side
    134,740.95x = 13,818,372,376.33
  5. Step 5: Solve for x
    x = 13,818,372,376.33/134,740.95
  6. Step 6: Final answer
    x = 102,555.11

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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.