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Finding the Fourth Proportional to 104,355.09, 144,009.42 and 56,607.42

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Solution

The fourth proportional to 104,355.09, 144,009.42 and 56,607.42 is: 78,117.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,355.09 : 144,009.42 = 56,607.42 : x
  2. Step 2: Convert to fraction form
    104,355.09/144,009.42 = 56,607.42/x
  3. Step 3: Cross multiply
    104,355.09x = 144,009.42 × 56,607.42
  4. Step 4: Simplify right side
    104,355.09x = 8,152,001,721.90
  5. Step 5: Solve for x
    x = 8,152,001,721.90/104,355.09
  6. Step 6: Final answer
    x = 78,117.91

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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.