Home / 157,527.18-217,385.55-85,905.54

Finding the Fourth Proportional to 157,527.18, 217,385.55 and 85,905.54

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Solution

The fourth proportional to 157,527.18, 217,385.55 and 85,905.54 is: 118,548.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,527.18 : 217,385.55 = 85,905.54 : x
  2. Step 2: Convert to fraction form
    157,527.18/217,385.55 = 85,905.54/x
  3. Step 3: Cross multiply
    157,527.18x = 217,385.55 × 85,905.54
  4. Step 4: Simplify right side
    157,527.18x = 18,674,623,060.95
  5. Step 5: Solve for x
    x = 18,674,623,060.95/157,527.18
  6. Step 6: Final answer
    x = 118,548.58

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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.