Home / 147,685.14-203,802.89-84,021.57

Finding the Fourth Proportional to 147,685.14, 203,802.89 and 84,021.57

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Solution

The fourth proportional to 147,685.14, 203,802.89 and 84,021.57 is: 115,948.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,685.14 : 203,802.89 = 84,021.57 : x
  2. Step 2: Convert to fraction form
    147,685.14/203,802.89 = 84,021.57/x
  3. Step 3: Cross multiply
    147,685.14x = 203,802.89 × 84,021.57
  4. Step 4: Simplify right side
    147,685.14x = 17,123,838,368.23
  5. Step 5: Solve for x
    x = 17,123,838,368.23/147,685.14
  6. Step 6: Final answer
    x = 115,948.28

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1.5x scale

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.