Home / 102,319.90-153,408.41-45,362.92

Finding the Fourth Proportional to 102,319.90, 153,408.41 and 45,362.92

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Solution

The fourth proportional to 102,319.90, 153,408.41 and 45,362.92 is: 68,012.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,319.90 : 153,408.41 = 45,362.92 : x
  2. Step 2: Convert to fraction form
    102,319.90/153,408.41 = 45,362.92/x
  3. Step 3: Cross multiply
    102,319.90x = 153,408.41 × 45,362.92
  4. Step 4: Simplify right side
    102,319.90x = 6,959,053,430.16
  5. Step 5: Solve for x
    x = 6,959,053,430.16/102,319.90
  6. Step 6: Final answer
    x = 68,012.71

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1.5x scale

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.