Home / 143,611.40-215,426.70-48,840.20

Finding the Fourth Proportional to 143,611.40, 215,426.70 and 48,840.20

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Solution

The fourth proportional to 143,611.40, 215,426.70 and 48,840.20 is: 73,263.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,611.40 : 215,426.70 = 48,840.20 : x
  2. Step 2: Convert to fraction form
    143,611.40/215,426.70 = 48,840.20/x
  3. Step 3: Cross multiply
    143,611.40x = 215,426.70 × 48,840.20
  4. Step 4: Simplify right side
    143,611.40x = 10,521,483,113.34
  5. Step 5: Solve for x
    x = 10,521,483,113.34/143,611.40
  6. Step 6: Final answer
    x = 73,263.56

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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.