Home / 117,132.12-161,642.70-63,417.72

Finding the Fourth Proportional to 117,132.12, 161,642.70 and 63,417.72

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Solution

The fourth proportional to 117,132.12, 161,642.70 and 63,417.72 is: 87,516.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,132.12 : 161,642.70 = 63,417.72 : x
  2. Step 2: Convert to fraction form
    117,132.12/161,642.70 = 63,417.72/x
  3. Step 3: Cross multiply
    117,132.12x = 161,642.70 × 63,417.72
  4. Step 4: Simplify right side
    117,132.12x = 10,251,011,488.64
  5. Step 5: Solve for x
    x = 10,251,011,488.64/117,132.12
  6. Step 6: Final answer
    x = 87,516.66

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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.