Home / 134,803.12-186,030.20-74,376.40

Finding the Fourth Proportional to 134,803.12, 186,030.20 and 74,376.40

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Solution

The fourth proportional to 134,803.12, 186,030.20 and 74,376.40 is: 102,640.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,803.12 : 186,030.20 = 74,376.40 : x
  2. Step 2: Convert to fraction form
    134,803.12/186,030.20 = 74,376.40/x
  3. Step 3: Cross multiply
    134,803.12x = 186,030.20 × 74,376.40
  4. Step 4: Simplify right side
    134,803.12x = 13,836,256,567.28
  5. Step 5: Solve for x
    x = 13,836,256,567.28/134,803.12
  6. Step 6: Final answer
    x = 102,640.48

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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.