Home / 112,477.36-155,118.20-93,326.80

Finding the Fourth Proportional to 112,477.36, 155,118.20 and 93,326.80

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Solution

The fourth proportional to 112,477.36, 155,118.20 and 93,326.80 is: 128,707.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,477.36 : 155,118.20 = 93,326.80 : x
  2. Step 2: Convert to fraction form
    112,477.36/155,118.20 = 93,326.80/x
  3. Step 3: Cross multiply
    112,477.36x = 155,118.20 × 93,326.80
  4. Step 4: Simplify right side
    112,477.36x = 14,476,685,227.76
  5. Step 5: Solve for x
    x = 14,476,685,227.76/112,477.36
  6. Step 6: Final answer
    x = 128,707.55

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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.