Home / 117,620.36-162,341.76-72,337.30

Finding the Fourth Proportional to 117,620.36, 162,341.76 and 72,337.30

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Solution

The fourth proportional to 117,620.36, 162,341.76 and 72,337.30 is: 99,841.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,620.36 : 162,341.76 = 72,337.30 : x
  2. Step 2: Convert to fraction form
    117,620.36/162,341.76 = 72,337.30/x
  3. Step 3: Cross multiply
    117,620.36x = 162,341.76 × 72,337.30
  4. Step 4: Simplify right side
    117,620.36x = 11,743,364,595.65
  5. Step 5: Solve for x
    x = 11,743,364,595.65/117,620.36
  6. Step 6: Final answer
    x = 99,841.26

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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.