Home / 156,971.55-235,455.21-38,643.87

Finding the Fourth Proportional to 156,971.55, 235,455.21 and 38,643.87

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Solution

The fourth proportional to 156,971.55, 235,455.21 and 38,643.87 is: 57,965.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,971.55 : 235,455.21 = 38,643.87 : x
  2. Step 2: Convert to fraction form
    156,971.55/235,455.21 = 38,643.87/x
  3. Step 3: Cross multiply
    156,971.55x = 235,455.21 × 38,643.87
  4. Step 4: Simplify right side
    156,971.55x = 9,098,900,526.06
  5. Step 5: Solve for x
    x = 9,098,900,526.06/156,971.55
  6. Step 6: Final answer
    x = 57,965.28

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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.