Home / 134,211.78-185,215.84-72,962.10

Finding the Fourth Proportional to 134,211.78, 185,215.84 and 72,962.10

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Solution

The fourth proportional to 134,211.78, 185,215.84 and 72,962.10 is: 100,689.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,211.78 : 185,215.84 = 72,962.10 : x
  2. Step 2: Convert to fraction form
    134,211.78/185,215.84 = 72,962.10/x
  3. Step 3: Cross multiply
    134,211.78x = 185,215.84 × 72,962.10
  4. Step 4: Simplify right side
    134,211.78x = 13,513,736,639.66
  5. Step 5: Solve for x
    x = 13,513,736,639.66/134,211.78
  6. Step 6: Final answer
    x = 100,689.65

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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.