Home / 103,176.72-142,453.08-64,473.48

Finding the Fourth Proportional to 103,176.72, 142,453.08 and 64,473.48

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Solution

The fourth proportional to 103,176.72, 142,453.08 and 64,473.48 is: 89,016.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,176.72 : 142,453.08 = 64,473.48 : x
  2. Step 2: Convert to fraction form
    103,176.72/142,453.08 = 64,473.48/x
  3. Step 3: Cross multiply
    103,176.72x = 142,453.08 × 64,473.48
  4. Step 4: Simplify right side
    103,176.72x = 9,184,445,804.32
  5. Step 5: Solve for x
    x = 9,184,445,804.32/103,176.72
  6. Step 6: Final answer
    x = 89,016.65

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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.