Home / 134,576.32-185,622.96-77,988.64

Finding the Fourth Proportional to 134,576.32, 185,622.96 and 77,988.64

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Solution

The fourth proportional to 134,576.32, 185,622.96 and 77,988.64 is: 107,570.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,576.32 : 185,622.96 = 77,988.64 : x
  2. Step 2: Convert to fraction form
    134,576.32/185,622.96 = 77,988.64/x
  3. Step 3: Cross multiply
    134,576.32x = 185,622.96 × 77,988.64
  4. Step 4: Simplify right side
    134,576.32x = 14,476,482,203.17
  5. Step 5: Solve for x
    x = 14,476,482,203.17/134,576.32
  6. Step 6: Final answer
    x = 107,570.80

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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.