Home / 105,705.20-158,557.80-64,233.20

Finding the Fourth Proportional to 105,705.20, 158,557.80 and 64,233.20

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Solution

The fourth proportional to 105,705.20, 158,557.80 and 64,233.20 is: 96,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,705.20 : 158,557.80 = 64,233.20 : x
  2. Step 2: Convert to fraction form
    105,705.20/158,557.80 = 64,233.20/x
  3. Step 3: Cross multiply
    105,705.20x = 158,557.80 × 64,233.20
  4. Step 4: Simplify right side
    105,705.20x = 10,184,674,878.96
  5. Step 5: Solve for x
    x = 10,184,674,878.96/105,705.20
  6. Step 6: Final answer
    x = 96,349.80

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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.