Home / 117,971.67-162,803.79-64,259.58

Finding the Fourth Proportional to 117,971.67, 162,803.79 and 64,259.58

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Solution

The fourth proportional to 117,971.67, 162,803.79 and 64,259.58 is: 88,679.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,971.67 : 162,803.79 = 64,259.58 : x
  2. Step 2: Convert to fraction form
    117,971.67/162,803.79 = 64,259.58/x
  3. Step 3: Cross multiply
    117,971.67x = 162,803.79 × 64,259.58
  4. Step 4: Simplify right side
    117,971.67x = 10,461,703,167.81
  5. Step 5: Solve for x
    x = 10,461,703,167.81/117,971.67
  6. Step 6: Final answer
    x = 88,679.79

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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.