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Finding the Fourth Proportional to 143,750.34, 215,638.88 and 48,948.76

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Solution

The fourth proportional to 143,750.34, 215,638.88 and 48,948.76 is: 73,427.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,750.34 : 215,638.88 = 48,948.76 : x
  2. Step 2: Convert to fraction form
    143,750.34/215,638.88 = 48,948.76/x
  3. Step 3: Cross multiply
    143,750.34x = 215,638.88 × 48,948.76
  4. Step 4: Simplify right side
    143,750.34x = 10,555,255,783.79
  5. Step 5: Solve for x
    x = 10,555,255,783.79/143,750.34
  6. Step 6: Final answer
    x = 73,427.69

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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.