Home / 112,479.36-155,120.96-93,328.80

Finding the Fourth Proportional to 112,479.36, 155,120.96 and 93,328.80

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Solution

The fourth proportional to 112,479.36, 155,120.96 and 93,328.80 is: 128,710.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,479.36 : 155,120.96 = 93,328.80 : x
  2. Step 2: Convert to fraction form
    112,479.36/155,120.96 = 93,328.80/x
  3. Step 3: Cross multiply
    112,479.36x = 155,120.96 × 93,328.80
  4. Step 4: Simplify right side
    112,479.36x = 14,477,253,051.65
  5. Step 5: Solve for x
    x = 14,477,253,051.65/112,479.36
  6. Step 6: Final answer
    x = 128,710.31

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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.