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Finding the Fourth Proportional to 117,706.88, 162,502.44 and 77,537.36

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Solution

The fourth proportional to 117,706.88, 162,502.44 and 77,537.36 is: 107,045.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,706.88 : 162,502.44 = 77,537.36 : x
  2. Step 2: Convert to fraction form
    117,706.88/162,502.44 = 77,537.36/x
  3. Step 3: Cross multiply
    117,706.88x = 162,502.44 × 77,537.36
  4. Step 4: Simplify right side
    117,706.88x = 12,600,010,191.16
  5. Step 5: Solve for x
    x = 12,600,010,191.16/117,706.88
  6. Step 6: Final answer
    x = 107,045.66

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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.