Home / 99,186.30-136,877.67-56,746.62

Finding the Fourth Proportional to 99,186.30, 136,877.67 and 56,746.62

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Solution

The fourth proportional to 99,186.30, 136,877.67 and 56,746.62 is: 78,310.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,186.30 : 136,877.67 = 56,746.62 : x
  2. Step 2: Convert to fraction form
    99,186.30/136,877.67 = 56,746.62/x
  3. Step 3: Cross multiply
    99,186.30x = 136,877.67 × 56,746.62
  4. Step 4: Simplify right side
    99,186.30x = 7,767,345,125.98
  5. Step 5: Solve for x
    x = 7,767,345,125.98/99,186.30
  6. Step 6: Final answer
    x = 78,310.67

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1.5x scale

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.