Home / 117,617.68-162,300.63-66,620.17

Finding the Fourth Proportional to 117,617.68, 162,300.63 and 66,620.17

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Solution

The fourth proportional to 117,617.68, 162,300.63 and 66,620.17 is: 91,929.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,617.68 : 162,300.63 = 66,620.17 : x
  2. Step 2: Convert to fraction form
    117,617.68/162,300.63 = 66,620.17/x
  3. Step 3: Cross multiply
    117,617.68x = 162,300.63 × 66,620.17
  4. Step 4: Simplify right side
    117,617.68x = 10,812,495,561.71
  5. Step 5: Solve for x
    x = 10,812,495,561.71/117,617.68
  6. Step 6: Final answer
    x = 91,929.17

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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.