Home / 102,155.49-153,264.56-52,271.06

Finding the Fourth Proportional to 102,155.49, 153,264.56 and 52,271.06

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Solution

The fourth proportional to 102,155.49, 153,264.56 and 52,271.06 is: 78,422.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,155.49 : 153,264.56 = 52,271.06 : x
  2. Step 2: Convert to fraction form
    102,155.49/153,264.56 = 52,271.06/x
  3. Step 3: Cross multiply
    102,155.49x = 153,264.56 × 52,271.06
  4. Step 4: Simplify right side
    102,155.49x = 8,011,299,983.96
  5. Step 5: Solve for x
    x = 8,011,299,983.96/102,155.49
  6. Step 6: Final answer
    x = 78,422.61

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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.