Home / 142,988.68-214,521.90-49,501.72

Finding the Fourth Proportional to 142,988.68, 214,521.90 and 49,501.72

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Solution

The fourth proportional to 142,988.68, 214,521.90 and 49,501.72 is: 74,266.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,988.68 : 214,521.90 = 49,501.72 : x
  2. Step 2: Convert to fraction form
    142,988.68/214,521.90 = 49,501.72/x
  3. Step 3: Cross multiply
    142,988.68x = 214,521.90 × 49,501.72
  4. Step 4: Simplify right side
    142,988.68x = 10,619,203,027.67
  5. Step 5: Solve for x
    x = 10,619,203,027.67/142,988.68
  6. Step 6: Final answer
    x = 74,266.04

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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.