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Finding the Fourth Proportional to 160,077.70, 240,128.70 and 47,749.12

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Solution

The fourth proportional to 160,077.70, 240,128.70 and 47,749.12 is: 71,627.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,077.70 : 240,128.70 = 47,749.12 : x
  2. Step 2: Convert to fraction form
    160,077.70/240,128.70 = 47,749.12/x
  3. Step 3: Cross multiply
    160,077.70x = 240,128.70 × 47,749.12
  4. Step 4: Simplify right side
    160,077.70x = 11,465,934,111.74
  5. Step 5: Solve for x
    x = 11,465,934,111.74/160,077.70
  6. Step 6: Final answer
    x = 71,627.30

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1.5x scale

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.