Home / 118,412.34-163,407.11-64,696.21

Finding the Fourth Proportional to 118,412.34, 163,407.11 and 64,696.21

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Solution

The fourth proportional to 118,412.34, 163,407.11 and 64,696.21 is: 89,279.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,412.34 : 163,407.11 = 64,696.21 : x
  2. Step 2: Convert to fraction form
    118,412.34/163,407.11 = 64,696.21/x
  3. Step 3: Cross multiply
    118,412.34x = 163,407.11 × 64,696.21
  4. Step 4: Simplify right side
    118,412.34x = 10,571,820,704.05
  5. Step 5: Solve for x
    x = 10,571,820,704.05/118,412.34
  6. Step 6: Final answer
    x = 89,279.72

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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.