Home / 102,518.16-141,475.08-57,806.16

Finding the Fourth Proportional to 102,518.16, 141,475.08 and 57,806.16

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Solution

The fourth proportional to 102,518.16, 141,475.08 and 57,806.16 is: 79,772.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,518.16 : 141,475.08 = 57,806.16 : x
  2. Step 2: Convert to fraction form
    102,518.16/141,475.08 = 57,806.16/x
  3. Step 3: Cross multiply
    102,518.16x = 141,475.08 × 57,806.16
  4. Step 4: Simplify right side
    102,518.16x = 8,178,131,110.49
  5. Step 5: Solve for x
    x = 8,178,131,110.49/102,518.16
  6. Step 6: Final answer
    x = 79,772.51

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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.