Home / 112,782.92-155,565.74-72,547.80

Finding the Fourth Proportional to 112,782.92, 155,565.74 and 72,547.80

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Solution

The fourth proportional to 112,782.92, 155,565.74 and 72,547.80 is: 100,067.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,782.92 : 155,565.74 = 72,547.80 : x
  2. Step 2: Convert to fraction form
    112,782.92/155,565.74 = 72,547.80/x
  3. Step 3: Cross multiply
    112,782.92x = 155,565.74 × 72,547.80
  4. Step 4: Simplify right side
    112,782.92x = 11,285,952,192.37
  5. Step 5: Solve for x
    x = 11,285,952,192.37/112,782.92
  6. Step 6: Final answer
    x = 100,067.92

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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.