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Finding the Fourth Proportional to 102,535.80, 153,846.90 and 55,822.20

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Solution

The fourth proportional to 102,535.80, 153,846.90 and 55,822.20 is: 83,756.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,535.80 : 153,846.90 = 55,822.20 : x
  2. Step 2: Convert to fraction form
    102,535.80/153,846.90 = 55,822.20/x
  3. Step 3: Cross multiply
    102,535.80x = 153,846.90 × 55,822.20
  4. Step 4: Simplify right side
    102,535.80x = 8,588,072,421.18
  5. Step 5: Solve for x
    x = 8,588,072,421.18/102,535.80
  6. Step 6: Final answer
    x = 83,756.82

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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.