Home / 147,938.70-221,908.05-84,953.10

Finding the Fourth Proportional to 147,938.70, 221,908.05 and 84,953.10

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Solution

The fourth proportional to 147,938.70, 221,908.05 and 84,953.10 is: 127,429.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,938.70 : 221,908.05 = 84,953.10 : x
  2. Step 2: Convert to fraction form
    147,938.70/221,908.05 = 84,953.10/x
  3. Step 3: Cross multiply
    147,938.70x = 221,908.05 × 84,953.10
  4. Step 4: Simplify right side
    147,938.70x = 18,851,776,762.46
  5. Step 5: Solve for x
    x = 18,851,776,762.46/147,938.70
  6. Step 6: Final answer
    x = 127,429.65

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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.