Home / 118,815.31-163,962.58-65,099.17

Finding the Fourth Proportional to 118,815.31, 163,962.58 and 65,099.17

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Solution

The fourth proportional to 118,815.31, 163,962.58 and 65,099.17 is: 89,835.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,815.31 : 163,962.58 = 65,099.17 : x
  2. Step 2: Convert to fraction form
    118,815.31/163,962.58 = 65,099.17/x
  3. Step 3: Cross multiply
    118,815.31x = 163,962.58 × 65,099.17
  4. Step 4: Simplify right side
    118,815.31x = 10,673,827,572.18
  5. Step 5: Solve for x
    x = 10,673,827,572.18/118,815.31
  6. Step 6: Final answer
    x = 89,835.46

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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.