Home / 121,592.72-182,320.63-83,686.54

Finding the Fourth Proportional to 121,592.72, 182,320.63 and 83,686.54

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Solution

The fourth proportional to 121,592.72, 182,320.63 and 83,686.54 is: 125,482.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,592.72 : 182,320.63 = 83,686.54 : x
  2. Step 2: Convert to fraction form
    121,592.72/182,320.63 = 83,686.54/x
  3. Step 3: Cross multiply
    121,592.72x = 182,320.63 × 83,686.54
  4. Step 4: Simplify right side
    121,592.72x = 15,257,782,276.89
  5. Step 5: Solve for x
    x = 15,257,782,276.89/121,592.72
  6. Step 6: Final answer
    x = 125,482.70

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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.