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Finding the Fourth Proportional to 147,005.70, 202,862.25 and 79,937.70

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Solution

The fourth proportional to 147,005.70, 202,862.25 and 79,937.70 is: 110,310.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,005.70 : 202,862.25 = 79,937.70 : x
  2. Step 2: Convert to fraction form
    147,005.70/202,862.25 = 79,937.70/x
  3. Step 3: Cross multiply
    147,005.70x = 202,862.25 × 79,937.70
  4. Step 4: Simplify right side
    147,005.70x = 16,216,341,681.83
  5. Step 5: Solve for x
    x = 16,216,341,681.83/147,005.70
  6. Step 6: Final answer
    x = 110,310.97

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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.