Home / 118,554.78-163,599.54-64,829.36

Finding the Fourth Proportional to 118,554.78, 163,599.54 and 64,829.36

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Solution

The fourth proportional to 118,554.78, 163,599.54 and 64,829.36 is: 89,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,554.78 : 163,599.54 = 64,829.36 : x
  2. Step 2: Convert to fraction form
    118,554.78/163,599.54 = 64,829.36/x
  3. Step 3: Cross multiply
    118,554.78x = 163,599.54 × 64,829.36
  4. Step 4: Simplify right side
    118,554.78x = 10,606,053,474.49
  5. Step 5: Solve for x
    x = 10,606,053,474.49/118,554.78
  6. Step 6: Final answer
    x = 89,461.20

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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.