Home / 89,388.77-133,957.40-70,586.03

Finding the Fourth Proportional to 89,388.77, 133,957.40 and 70,586.03

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Solution

The fourth proportional to 89,388.77, 133,957.40 and 70,586.03 is: 105,779.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,388.77 : 133,957.40 = 70,586.03 : x
  2. Step 2: Convert to fraction form
    89,388.77/133,957.40 = 70,586.03/x
  3. Step 3: Cross multiply
    89,388.77x = 133,957.40 × 70,586.03
  4. Step 4: Simplify right side
    89,388.77x = 9,455,521,037.09
  5. Step 5: Solve for x
    x = 9,455,521,037.09/89,388.77
  6. Step 6: Final answer
    x = 105,779.75

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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.