Home / 156,985.83-235,476.81-38,658.20

Finding the Fourth Proportional to 156,985.83, 235,476.81 and 38,658.20

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Solution

The fourth proportional to 156,985.83, 235,476.81 and 38,658.20 is: 57,986.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,985.83 : 235,476.81 = 38,658.20 : x
  2. Step 2: Convert to fraction form
    156,985.83/235,476.81 = 38,658.20/x
  3. Step 3: Cross multiply
    156,985.83x = 235,476.81 × 38,658.20
  4. Step 4: Simplify right side
    156,985.83x = 9,103,109,616.34
  5. Step 5: Solve for x
    x = 9,103,109,616.34/156,985.83
  6. Step 6: Final answer
    x = 57,986.82

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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.