Home / 99,215.51-136,929.35-56,773.13

Finding the Fourth Proportional to 99,215.51, 136,929.35 and 56,773.13

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Solution

The fourth proportional to 99,215.51, 136,929.35 and 56,773.13 is: 78,353.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,215.51 : 136,929.35 = 56,773.13 : x
  2. Step 2: Convert to fraction form
    99,215.51/136,929.35 = 56,773.13/x
  3. Step 3: Cross multiply
    99,215.51x = 136,929.35 × 56,773.13
  4. Step 4: Simplify right side
    99,215.51x = 7,773,907,245.65
  5. Step 5: Solve for x
    x = 7,773,907,245.65/99,215.51
  6. Step 6: Final answer
    x = 78,353.75

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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.