Home / 99,320.20-136,927.71-67,433.74

Finding the Fourth Proportional to 99,320.20, 136,927.71 and 67,433.74

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Solution

The fourth proportional to 99,320.20, 136,927.71 and 67,433.74 is: 92,967.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,320.20 : 136,927.71 = 67,433.74 : x
  2. Step 2: Convert to fraction form
    99,320.20/136,927.71 = 67,433.74/x
  3. Step 3: Cross multiply
    99,320.20x = 136,927.71 × 67,433.74
  4. Step 4: Simplify right side
    99,320.20x = 9,233,547,594.94
  5. Step 5: Solve for x
    x = 9,233,547,594.94/99,320.20
  6. Step 6: Final answer
    x = 92,967.47

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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.