Home / 107,312.31-148,092.72-58,918.70

Finding the Fourth Proportional to 107,312.31, 148,092.72 and 58,918.70

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Solution

The fourth proportional to 107,312.31, 148,092.72 and 58,918.70 is: 81,308.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,312.31 : 148,092.72 = 58,918.70 : x
  2. Step 2: Convert to fraction form
    107,312.31/148,092.72 = 58,918.70/x
  3. Step 3: Cross multiply
    107,312.31x = 148,092.72 × 58,918.70
  4. Step 4: Simplify right side
    107,312.31x = 8,725,430,541.86
  5. Step 5: Solve for x
    x = 8,725,430,541.86/107,312.31
  6. Step 6: Final answer
    x = 81,308.76

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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.