Home / 112,118.40-154,630.08-83,891.52

Finding the Fourth Proportional to 112,118.40, 154,630.08 and 83,891.52

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Solution

The fourth proportional to 112,118.40, 154,630.08 and 83,891.52 is: 115,700.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,118.40 : 154,630.08 = 83,891.52 : x
  2. Step 2: Convert to fraction form
    112,118.40/154,630.08 = 83,891.52/x
  3. Step 3: Cross multiply
    112,118.40x = 154,630.08 × 83,891.52
  4. Step 4: Simplify right side
    112,118.40x = 12,972,152,448.92
  5. Step 5: Solve for x
    x = 12,972,152,448.92/112,118.40
  6. Step 6: Final answer
    x = 115,700.48

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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.