Home / 108,428.63-149,647.26-62,479.35

Finding the Fourth Proportional to 108,428.63, 149,647.26 and 62,479.35

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Solution

The fourth proportional to 108,428.63, 149,647.26 and 62,479.35 is: 86,230.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,428.63 : 149,647.26 = 62,479.35 : x
  2. Step 2: Convert to fraction form
    108,428.63/149,647.26 = 62,479.35/x
  3. Step 3: Cross multiply
    108,428.63x = 149,647.26 × 62,479.35
  4. Step 4: Simplify right side
    108,428.63x = 9,349,863,768.38
  5. Step 5: Solve for x
    x = 9,349,863,768.38/108,428.63
  6. Step 6: Final answer
    x = 86,230.59

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1.5x scale

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.