Home / 112,646.90-168,783.75-79,203.57

Finding the Fourth Proportional to 112,646.90, 168,783.75 and 79,203.57

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Solution

The fourth proportional to 112,646.90, 168,783.75 and 79,203.57 is: 118,674.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,646.90 : 168,783.75 = 79,203.57 : x
  2. Step 2: Convert to fraction form
    112,646.90/168,783.75 = 79,203.57/x
  3. Step 3: Cross multiply
    112,646.90x = 168,783.75 × 79,203.57
  4. Step 4: Simplify right side
    112,646.90x = 13,368,275,557.99
  5. Step 5: Solve for x
    x = 13,368,275,557.99/112,646.90
  6. Step 6: Final answer
    x = 118,674.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.