Home / 140,434.48-210,679.08-51,688.72

Finding the Fourth Proportional to 140,434.48, 210,679.08 and 51,688.72

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Solution

The fourth proportional to 140,434.48, 210,679.08 and 51,688.72 is: 77,543.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,434.48 : 210,679.08 = 51,688.72 : x
  2. Step 2: Convert to fraction form
    140,434.48/210,679.08 = 51,688.72/x
  3. Step 3: Cross multiply
    140,434.48x = 210,679.08 × 51,688.72
  4. Step 4: Simplify right side
    140,434.48x = 10,889,731,975.98
  5. Step 5: Solve for x
    x = 10,889,731,975.98/140,434.48
  6. Step 6: Final answer
    x = 77,543.15

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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.