Home / 99,178.41-136,864.30-56,154.66

Finding the Fourth Proportional to 99,178.41, 136,864.30 and 56,154.66

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Solution

The fourth proportional to 99,178.41, 136,864.30 and 56,154.66 is: 77,492.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,178.41 : 136,864.30 = 56,154.66 : x
  2. Step 2: Convert to fraction form
    99,178.41/136,864.30 = 56,154.66/x
  3. Step 3: Cross multiply
    99,178.41x = 136,864.30 × 56,154.66
  4. Step 4: Simplify right side
    99,178.41x = 7,685,568,232.64
  5. Step 5: Solve for x
    x = 7,685,568,232.64/99,178.41
  6. Step 6: Final answer
    x = 77,492.35

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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.