Home / 140,164.50-210,312.36-61,301.28

Finding the Fourth Proportional to 140,164.50, 210,312.36 and 61,301.28

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Solution

The fourth proportional to 140,164.50, 210,312.36 and 61,301.28 is: 91,980.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,164.50 : 210,312.36 = 61,301.28 : x
  2. Step 2: Convert to fraction form
    140,164.50/210,312.36 = 61,301.28/x
  3. Step 3: Cross multiply
    140,164.50x = 210,312.36 × 61,301.28
  4. Step 4: Simplify right side
    140,164.50x = 12,892,416,867.82
  5. Step 5: Solve for x
    x = 12,892,416,867.82/140,164.50
  6. Step 6: Final answer
    x = 91,980.61

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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.