Home / 156,989.40-235,397.70-51,754.20

Finding the Fourth Proportional to 156,989.40, 235,397.70 and 51,754.20

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Solution

The fourth proportional to 156,989.40, 235,397.70 and 51,754.20 is: 77,602.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,989.40 : 235,397.70 = 51,754.20 : x
  2. Step 2: Convert to fraction form
    156,989.40/235,397.70 = 51,754.20/x
  3. Step 3: Cross multiply
    156,989.40x = 235,397.70 × 51,754.20
  4. Step 4: Simplify right side
    156,989.40x = 12,182,819,645.34
  5. Step 5: Solve for x
    x = 12,182,819,645.34/156,989.40
  6. Step 6: Final answer
    x = 77,602.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.