Home / 156,871.07-235,202.55-57,019.40

Finding the Fourth Proportional to 156,871.07, 235,202.55 and 57,019.40

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Solution

The fourth proportional to 156,871.07, 235,202.55 and 57,019.40 is: 85,491.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,871.07 : 235,202.55 = 57,019.40 : x
  2. Step 2: Convert to fraction form
    156,871.07/235,202.55 = 57,019.40/x
  3. Step 3: Cross multiply
    156,871.07x = 235,202.55 × 57,019.40
  4. Step 4: Simplify right side
    156,871.07x = 13,411,108,279.47
  5. Step 5: Solve for x
    x = 13,411,108,279.47/156,871.07
  6. Step 6: Final answer
    x = 85,491.28

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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.