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Finding the Fourth Proportional to 152,644.76, 210,649.64 and 85,576.76

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Solution

The fourth proportional to 152,644.76, 210,649.64 and 85,576.76 is: 118,095.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,644.76 : 210,649.64 = 85,576.76 : x
  2. Step 2: Convert to fraction form
    152,644.76/210,649.64 = 85,576.76/x
  3. Step 3: Cross multiply
    152,644.76x = 210,649.64 × 85,576.76
  4. Step 4: Simplify right side
    152,644.76x = 18,026,713,686.37
  5. Step 5: Solve for x
    x = 18,026,713,686.37/152,644.76
  6. Step 6: Final answer
    x = 118,095.86

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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.