Home / 143,402.02-215,107.50-48,630.80

Finding the Fourth Proportional to 143,402.02, 215,107.50 and 48,630.80

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Solution

The fourth proportional to 143,402.02, 215,107.50 and 48,630.80 is: 72,947.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,402.02 : 215,107.50 = 48,630.80 : x
  2. Step 2: Convert to fraction form
    143,402.02/215,107.50 = 48,630.80/x
  3. Step 3: Cross multiply
    143,402.02x = 215,107.50 × 48,630.80
  4. Step 4: Simplify right side
    143,402.02x = 10,460,849,811
  5. Step 5: Solve for x
    x = 10,460,849,811/143,402.02
  6. Step 6: Final answer
    x = 72,947.72

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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.