Home / 156,749.70-235,124.55-83,021.70

Finding the Fourth Proportional to 156,749.70, 235,124.55 and 83,021.70

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Solution

The fourth proportional to 156,749.70, 235,124.55 and 83,021.70 is: 124,532.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,749.70 : 235,124.55 = 83,021.70 : x
  2. Step 2: Convert to fraction form
    156,749.70/235,124.55 = 83,021.70/x
  3. Step 3: Cross multiply
    156,749.70x = 235,124.55 × 83,021.70
  4. Step 4: Simplify right side
    156,749.70x = 19,520,439,852.74
  5. Step 5: Solve for x
    x = 19,520,439,852.74/156,749.70
  6. Step 6: Final answer
    x = 124,532.55

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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.