Home / 118,412.50-163,407.32-64,696.36

Finding the Fourth Proportional to 118,412.50, 163,407.32 and 64,696.36

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Solution

The fourth proportional to 118,412.50, 163,407.32 and 64,696.36 is: 89,279.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,412.50 : 163,407.32 = 64,696.36 : x
  2. Step 2: Convert to fraction form
    118,412.50/163,407.32 = 64,696.36/x
  3. Step 3: Cross multiply
    118,412.50x = 163,407.32 × 64,696.36
  4. Step 4: Simplify right side
    118,412.50x = 10,571,858,801.36
  5. Step 5: Solve for x
    x = 10,571,858,801.36/118,412.50
  6. Step 6: Final answer
    x = 89,279.92

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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.