Home / 143,312.10-214,968.15-38,141.70

Finding the Fourth Proportional to 143,312.10, 214,968.15 and 38,141.70

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Solution

The fourth proportional to 143,312.10, 214,968.15 and 38,141.70 is: 57,212.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,312.10 : 214,968.15 = 38,141.70 : x
  2. Step 2: Convert to fraction form
    143,312.10/214,968.15 = 38,141.70/x
  3. Step 3: Cross multiply
    143,312.10x = 214,968.15 × 38,141.70
  4. Step 4: Simplify right side
    143,312.10x = 8,199,250,686.86
  5. Step 5: Solve for x
    x = 8,199,250,686.86/143,312.10
  6. Step 6: Final answer
    x = 57,212.55

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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.