Home / 117,718.65-162,455-64,007.34

Finding the Fourth Proportional to 117,718.65, 162,455 and 64,007.34

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Solution

The fourth proportional to 117,718.65, 162,455 and 64,007.34 is: 88,331.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,718.65 : 162,455 = 64,007.34 : x
  2. Step 2: Convert to fraction form
    117,718.65/162,455 = 64,007.34/x
  3. Step 3: Cross multiply
    117,718.65x = 162,455 × 64,007.34
  4. Step 4: Simplify right side
    117,718.65x = 10,398,312,419.70
  5. Step 5: Solve for x
    x = 10,398,312,419.70/117,718.65
  6. Step 6: Final answer
    x = 88,331.90

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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.