Home / 117,445.65-162,074.18-63,729.29

Finding the Fourth Proportional to 117,445.65, 162,074.18 and 63,729.29

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Solution

The fourth proportional to 117,445.65, 162,074.18 and 63,729.29 is: 87,945.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,445.65 : 162,074.18 = 63,729.29 : x
  2. Step 2: Convert to fraction form
    117,445.65/162,074.18 = 63,729.29/x
  3. Step 3: Cross multiply
    117,445.65x = 162,074.18 × 63,729.29
  4. Step 4: Simplify right side
    117,445.65x = 10,328,871,289.71
  5. Step 5: Solve for x
    x = 10,328,871,289.71/117,445.65
  6. Step 6: Final answer
    x = 87,945.97

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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.