Home / 113,402.03-156,485.62-65,658.40

Finding the Fourth Proportional to 113,402.03, 156,485.62 and 65,658.40

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Solution

The fourth proportional to 113,402.03, 156,485.62 and 65,658.40 is: 90,603.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,402.03 : 156,485.62 = 65,658.40 : x
  2. Step 2: Convert to fraction form
    113,402.03/156,485.62 = 65,658.40/x
  3. Step 3: Cross multiply
    113,402.03x = 156,485.62 × 65,658.40
  4. Step 4: Simplify right side
    113,402.03x = 10,274,595,123.07
  5. Step 5: Solve for x
    x = 10,274,595,123.07/113,402.03
  6. Step 6: Final answer
    x = 90,603.28

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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.