Home / 104,388.40-144,055.56-61,981.84

Finding the Fourth Proportional to 104,388.40, 144,055.56 and 61,981.84

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Solution

The fourth proportional to 104,388.40, 144,055.56 and 61,981.84 is: 85,534.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,388.40 : 144,055.56 = 61,981.84 : x
  2. Step 2: Convert to fraction form
    104,388.40/144,055.56 = 61,981.84/x
  3. Step 3: Cross multiply
    104,388.40x = 144,055.56 × 61,981.84
  4. Step 4: Simplify right side
    104,388.40x = 8,928,828,671.03
  5. Step 5: Solve for x
    x = 8,928,828,671.03/104,388.40
  6. Step 6: Final answer
    x = 85,534.68

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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.