Home / 257,087.12-385,430.86-97,160.44

Finding the Fourth Proportional to 257,087.12, 385,430.86 and 97,160.44

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Solution

The fourth proportional to 257,087.12, 385,430.86 and 97,160.44 is: 145,665.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,087.12 : 385,430.86 = 97,160.44 : x
  2. Step 2: Convert to fraction form
    257,087.12/385,430.86 = 97,160.44/x
  3. Step 3: Cross multiply
    257,087.12x = 385,430.86 × 97,160.44
  4. Step 4: Simplify right side
    257,087.12x = 37,448,631,947.18
  5. Step 5: Solve for x
    x = 37,448,631,947.18/257,087.12
  6. Step 6: Final answer
    x = 145,665.14

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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.