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Finding the Fourth Proportional to 99,798.29, 137,701.08 and 57,348.62

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Solution

The fourth proportional to 99,798.29, 137,701.08 and 57,348.62 is: 79,129.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,798.29 : 137,701.08 = 57,348.62 : x
  2. Step 2: Convert to fraction form
    99,798.29/137,701.08 = 57,348.62/x
  3. Step 3: Cross multiply
    99,798.29x = 137,701.08 × 57,348.62
  4. Step 4: Simplify right side
    99,798.29x = 7,896,967,512.95
  5. Step 5: Solve for x
    x = 7,896,967,512.95/99,798.29
  6. Step 6: Final answer
    x = 79,129.28

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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.