Home / 102,431.48-141,364.73-62,155.45

Finding the Fourth Proportional to 102,431.48, 141,364.73 and 62,155.45

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Solution

The fourth proportional to 102,431.48, 141,364.73 and 62,155.45 is: 85,780.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,431.48 : 141,364.73 = 62,155.45 : x
  2. Step 2: Convert to fraction form
    102,431.48/141,364.73 = 62,155.45/x
  3. Step 3: Cross multiply
    102,431.48x = 141,364.73 × 62,155.45
  4. Step 4: Simplify right side
    102,431.48x = 8,786,587,389.68
  5. Step 5: Solve for x
    x = 8,786,587,389.68/102,431.48
  6. Step 6: Final answer
    x = 85,780.15

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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.