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Finding the Fourth Proportional to 145,960.06, 201,424.80 and 78,892.06

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Solution

The fourth proportional to 145,960.06, 201,424.80 and 78,892.06 is: 108,871.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,960.06 : 201,424.80 = 78,892.06 : x
  2. Step 2: Convert to fraction form
    145,960.06/201,424.80 = 78,892.06/x
  3. Step 3: Cross multiply
    145,960.06x = 201,424.80 × 78,892.06
  4. Step 4: Simplify right side
    145,960.06x = 15,890,817,407.09
  5. Step 5: Solve for x
    x = 15,890,817,407.09/145,960.06
  6. Step 6: Final answer
    x = 108,871.00

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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.