Home / 112,003.18-154,509.90-71,684.62

Finding the Fourth Proportional to 112,003.18, 154,509.90 and 71,684.62

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Solution

The fourth proportional to 112,003.18, 154,509.90 and 71,684.62 is: 98,889.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,003.18 : 154,509.90 = 71,684.62 : x
  2. Step 2: Convert to fraction form
    112,003.18/154,509.90 = 71,684.62/x
  3. Step 3: Cross multiply
    112,003.18x = 154,509.90 × 71,684.62
  4. Step 4: Simplify right side
    112,003.18x = 11,075,983,467.74
  5. Step 5: Solve for x
    x = 11,075,983,467.74/112,003.18
  6. Step 6: Final answer
    x = 98,889.90

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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.