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Finding the Fourth Proportional to 104,807.80, 144,637.36 and 57,063.76

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Solution

The fourth proportional to 104,807.80, 144,637.36 and 57,063.76 is: 78,749.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,807.80 : 144,637.36 = 57,063.76 : x
  2. Step 2: Convert to fraction form
    104,807.80/144,637.36 = 57,063.76/x
  3. Step 3: Cross multiply
    104,807.80x = 144,637.36 × 57,063.76
  4. Step 4: Simplify right side
    104,807.80x = 8,253,551,598.07
  5. Step 5: Solve for x
    x = 8,253,551,598.07/104,807.80
  6. Step 6: Final answer
    x = 78,749.40

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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.