Home / 119,512.08-164,995.32-79,280.40

Finding the Fourth Proportional to 119,512.08, 164,995.32 and 79,280.40

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Solution

The fourth proportional to 119,512.08, 164,995.32 and 79,280.40 is: 109,452.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,512.08 : 164,995.32 = 79,280.40 : x
  2. Step 2: Convert to fraction form
    119,512.08/164,995.32 = 79,280.40/x
  3. Step 3: Cross multiply
    119,512.08x = 164,995.32 × 79,280.40
  4. Step 4: Simplify right side
    119,512.08x = 13,080,894,967.73
  5. Step 5: Solve for x
    x = 13,080,894,967.73/119,512.08
  6. Step 6: Final answer
    x = 109,452.49

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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.