Home / 147,150.70-203,061.02-81,743.74

Finding the Fourth Proportional to 147,150.70, 203,061.02 and 81,743.74

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Solution

The fourth proportional to 147,150.70, 203,061.02 and 81,743.74 is: 112,802.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,150.70 : 203,061.02 = 81,743.74 : x
  2. Step 2: Convert to fraction form
    147,150.70/203,061.02 = 81,743.74/x
  3. Step 3: Cross multiply
    147,150.70x = 203,061.02 × 81,743.74
  4. Step 4: Simplify right side
    147,150.70x = 16,598,966,306.64
  5. Step 5: Solve for x
    x = 16,598,966,306.64/147,150.70
  6. Step 6: Final answer
    x = 112,802.50

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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.