Home / 117,990.09-162,824.45-64,275.75

Finding the Fourth Proportional to 117,990.09, 162,824.45 and 64,275.75

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Solution

The fourth proportional to 117,990.09, 162,824.45 and 64,275.75 is: 88,699.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,990.09 : 162,824.45 = 64,275.75 : x
  2. Step 2: Convert to fraction form
    117,990.09/162,824.45 = 64,275.75/x
  3. Step 3: Cross multiply
    117,990.09x = 162,824.45 × 64,275.75
  4. Step 4: Simplify right side
    117,990.09x = 10,465,663,320.71
  5. Step 5: Solve for x
    x = 10,465,663,320.71/117,990.09
  6. Step 6: Final answer
    x = 88,699.51

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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.