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Finding the Fourth Proportional to 107,808.80, 162,004.80 and 94,978.40

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Solution

The fourth proportional to 107,808.80, 162,004.80 and 94,978.40 is: 142,724.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,808.80 : 162,004.80 = 94,978.40 : x
  2. Step 2: Convert to fraction form
    107,808.80/162,004.80 = 94,978.40/x
  3. Step 3: Cross multiply
    107,808.80x = 162,004.80 × 94,978.40
  4. Step 4: Simplify right side
    107,808.80x = 15,386,956,696.32
  5. Step 5: Solve for x
    x = 15,386,956,696.32/107,808.80
  6. Step 6: Final answer
    x = 142,724.50

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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.