Home / 118,428.55-163,429.42-64,712.33

Finding the Fourth Proportional to 118,428.55, 163,429.42 and 64,712.33

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Solution

The fourth proportional to 118,428.55, 163,429.42 and 64,712.33 is: 89,301.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,428.55 : 163,429.42 = 64,712.33 : x
  2. Step 2: Convert to fraction form
    118,428.55/163,429.42 = 64,712.33/x
  3. Step 3: Cross multiply
    118,428.55x = 163,429.42 × 64,712.33
  4. Step 4: Simplify right side
    118,428.55x = 10,575,898,558.75
  5. Step 5: Solve for x
    x = 10,575,898,558.75/118,428.55
  6. Step 6: Final answer
    x = 89,301.93

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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.