Home / 138,913.16-191,700.18-75,250.98

Finding the Fourth Proportional to 138,913.16, 191,700.18 and 75,250.98

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Solution

The fourth proportional to 138,913.16, 191,700.18 and 75,250.98 is: 103,846.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,913.16 : 191,700.18 = 75,250.98 : x
  2. Step 2: Convert to fraction form
    138,913.16/191,700.18 = 75,250.98/x
  3. Step 3: Cross multiply
    138,913.16x = 191,700.18 × 75,250.98
  4. Step 4: Simplify right side
    138,913.16x = 14,425,626,411.18
  5. Step 5: Solve for x
    x = 14,425,626,411.18/138,913.16
  6. Step 6: Final answer
    x = 103,846.37

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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.