Home / 108,345.42-149,485.62-62,396.55

Finding the Fourth Proportional to 108,345.42, 149,485.62 and 62,396.55

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Solution

The fourth proportional to 108,345.42, 149,485.62 and 62,396.55 is: 86,089.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,345.42 : 149,485.62 = 62,396.55 : x
  2. Step 2: Convert to fraction form
    108,345.42/149,485.62 = 62,396.55/x
  3. Step 3: Cross multiply
    108,345.42x = 149,485.62 × 62,396.55
  4. Step 4: Simplify right side
    108,345.42x = 9,327,386,962.61
  5. Step 5: Solve for x
    x = 9,327,386,962.61/108,345.42
  6. Step 6: Final answer
    x = 86,089.35

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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.