Home / 165,142.12-247,649.79-70,312.18

Finding the Fourth Proportional to 165,142.12, 247,649.79 and 70,312.18

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Solution

The fourth proportional to 165,142.12, 247,649.79 and 70,312.18 is: 105,441.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,142.12 : 247,649.79 = 70,312.18 : x
  2. Step 2: Convert to fraction form
    165,142.12/247,649.79 = 70,312.18/x
  3. Step 3: Cross multiply
    165,142.12x = 247,649.79 × 70,312.18
  4. Step 4: Simplify right side
    165,142.12x = 17,412,796,611.44
  5. Step 5: Solve for x
    x = 17,412,796,611.44/165,142.12
  6. Step 6: Final answer
    x = 105,441.28

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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.