Home / 210,933.50-316,442.57-77,814.45

Finding the Fourth Proportional to 210,933.50, 316,442.57 and 77,814.45

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Solution

The fourth proportional to 210,933.50, 316,442.57 and 77,814.45 is: 116,737.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,933.50 : 316,442.57 = 77,814.45 : x
  2. Step 2: Convert to fraction form
    210,933.50/316,442.57 = 77,814.45/x
  3. Step 3: Cross multiply
    210,933.50x = 316,442.57 × 77,814.45
  4. Step 4: Simplify right side
    210,933.50x = 24,623,804,152.06
  5. Step 5: Solve for x
    x = 24,623,804,152.06/210,933.50
  6. Step 6: Final answer
    x = 116,737.29

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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.