Home / 142,941.74-197,130.51-89,231.72

Finding the Fourth Proportional to 142,941.74, 197,130.51 and 89,231.72

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Solution

The fourth proportional to 142,941.74, 197,130.51 and 89,231.72 is: 123,059.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,941.74 : 197,130.51 = 89,231.72 : x
  2. Step 2: Convert to fraction form
    142,941.74/197,130.51 = 89,231.72/x
  3. Step 3: Cross multiply
    142,941.74x = 197,130.51 × 89,231.72
  4. Step 4: Simplify right side
    142,941.74x = 17,590,293,486.12
  5. Step 5: Solve for x
    x = 17,590,293,486.12/142,941.74
  6. Step 6: Final answer
    x = 123,059.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.