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Finding the Fourth Proportional to 145,995.63, 201,474.17 and 78,927.63

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Solution

The fourth proportional to 145,995.63, 201,474.17 and 78,927.63 is: 108,920.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,995.63 : 201,474.17 = 78,927.63 : x
  2. Step 2: Convert to fraction form
    145,995.63/201,474.17 = 78,927.63/x
  3. Step 3: Cross multiply
    145,995.63x = 201,474.17 × 78,927.63
  4. Step 4: Simplify right side
    145,995.63x = 15,901,878,744.32
  5. Step 5: Solve for x
    x = 15,901,878,744.32/145,995.63
  6. Step 6: Final answer
    x = 108,920.24

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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.