Home / 156,189.98-215,381.06-133,603.74

Finding the Fourth Proportional to 156,189.98, 215,381.06 and 133,603.74

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Solution

The fourth proportional to 156,189.98, 215,381.06 and 133,603.74 is: 184,235.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,189.98 : 215,381.06 = 133,603.74 : x
  2. Step 2: Convert to fraction form
    156,189.98/215,381.06 = 133,603.74/x
  3. Step 3: Cross multiply
    156,189.98x = 215,381.06 × 133,603.74
  4. Step 4: Simplify right side
    156,189.98x = 28,775,715,141.16
  5. Step 5: Solve for x
    x = 28,775,715,141.16/156,189.98
  6. Step 6: Final answer
    x = 184,235.35

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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.