Home / 142,902.03-214,397.66-86,038.27

Finding the Fourth Proportional to 142,902.03, 214,397.66 and 86,038.27

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Solution

The fourth proportional to 142,902.03, 214,397.66 and 86,038.27 is: 129,084.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,902.03 : 214,397.66 = 86,038.27 : x
  2. Step 2: Convert to fraction form
    142,902.03/214,397.66 = 86,038.27/x
  3. Step 3: Cross multiply
    142,902.03x = 214,397.66 × 86,038.27
  4. Step 4: Simplify right side
    142,902.03x = 18,446,403,758.45
  5. Step 5: Solve for x
    x = 18,446,403,758.45/142,902.03
  6. Step 6: Final answer
    x = 129,084.27

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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.