Home / 210,947.65-316,446.02-74,128.70

Finding the Fourth Proportional to 210,947.65, 316,446.02 and 74,128.70

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Solution

The fourth proportional to 210,947.65, 316,446.02 and 74,128.70 is: 111,201.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,947.65 : 316,446.02 = 74,128.70 : x
  2. Step 2: Convert to fraction form
    210,947.65/316,446.02 = 74,128.70/x
  3. Step 3: Cross multiply
    210,947.65x = 316,446.02 × 74,128.70
  4. Step 4: Simplify right side
    210,947.65x = 23,457,732,082.77
  5. Step 5: Solve for x
    x = 23,457,732,082.77/210,947.65
  6. Step 6: Final answer
    x = 111,201.68

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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.