Home / 112,801.16-169,284.48-90,879.24

Finding the Fourth Proportional to 112,801.16, 169,284.48 and 90,879.24

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Solution

The fourth proportional to 112,801.16, 169,284.48 and 90,879.24 is: 136,385.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,801.16 : 169,284.48 = 90,879.24 : x
  2. Step 2: Convert to fraction form
    112,801.16/169,284.48 = 90,879.24/x
  3. Step 3: Cross multiply
    112,801.16x = 169,284.48 × 90,879.24
  4. Step 4: Simplify right side
    112,801.16x = 15,384,444,886.20
  5. Step 5: Solve for x
    x = 15,384,444,886.20/112,801.16
  6. Step 6: Final answer
    x = 136,385.52

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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.