Home / 89,779.08-134,963.90-83,283.69

Finding the Fourth Proportional to 89,779.08, 134,963.90 and 83,283.69

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Solution

The fourth proportional to 89,779.08, 134,963.90 and 83,283.69 is: 125,199.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,779.08 : 134,963.90 = 83,283.69 : x
  2. Step 2: Convert to fraction form
    89,779.08/134,963.90 = 83,283.69/x
  3. Step 3: Cross multiply
    89,779.08x = 134,963.90 × 83,283.69
  4. Step 4: Simplify right side
    89,779.08x = 11,240,291,192.37
  5. Step 5: Solve for x
    x = 11,240,291,192.37/89,779.08
  6. Step 6: Final answer
    x = 125,199.45

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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.