Home / 117,567.72-162,149.62-77,322.81

Finding the Fourth Proportional to 117,567.72, 162,149.62 and 77,322.81

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Solution

The fourth proportional to 117,567.72, 162,149.62 and 77,322.81 is: 106,643.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,567.72 : 162,149.62 = 77,322.81 : x
  2. Step 2: Convert to fraction form
    117,567.72/162,149.62 = 77,322.81/x
  3. Step 3: Cross multiply
    117,567.72x = 162,149.62 × 77,322.81
  4. Step 4: Simplify right side
    117,567.72x = 12,537,864,258.83
  5. Step 5: Solve for x
    x = 12,537,864,258.83/117,567.72
  6. Step 6: Final answer
    x = 106,643.76

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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.