Home / 157,176.04-216,905.70-85,558.12

Finding the Fourth Proportional to 157,176.04, 216,905.70 and 85,558.12

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Solution

The fourth proportional to 157,176.04, 216,905.70 and 85,558.12 is: 118,071.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,176.04 : 216,905.70 = 85,558.12 : x
  2. Step 2: Convert to fraction form
    157,176.04/216,905.70 = 85,558.12/x
  3. Step 3: Cross multiply
    157,176.04x = 216,905.70 × 85,558.12
  4. Step 4: Simplify right side
    157,176.04x = 18,558,043,909.28
  5. Step 5: Solve for x
    x = 18,558,043,909.28/157,176.04
  6. Step 6: Final answer
    x = 118,071.71

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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.