Home / 152,180.68-210,009.18-85,112.68

Finding the Fourth Proportional to 152,180.68, 210,009.18 and 85,112.68

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Solution

The fourth proportional to 152,180.68, 210,009.18 and 85,112.68 is: 117,455.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,180.68 : 210,009.18 = 85,112.68 : x
  2. Step 2: Convert to fraction form
    152,180.68/210,009.18 = 85,112.68/x
  3. Step 3: Cross multiply
    152,180.68x = 210,009.18 × 85,112.68
  4. Step 4: Simplify right side
    152,180.68x = 17,874,444,134.40
  5. Step 5: Solve for x
    x = 17,874,444,134.40/152,180.68
  6. Step 6: Final answer
    x = 117,455.41

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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.