Home / 147,901.90-221,809.65-53,121.10

Finding the Fourth Proportional to 147,901.90, 221,809.65 and 53,121.10

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Solution

The fourth proportional to 147,901.90, 221,809.65 and 53,121.10 is: 79,666.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,901.90 : 221,809.65 = 53,121.10 : x
  2. Step 2: Convert to fraction form
    147,901.90/221,809.65 = 53,121.10/x
  3. Step 3: Cross multiply
    147,901.90x = 221,809.65 × 53,121.10
  4. Step 4: Simplify right side
    147,901.90x = 11,782,772,598.62
  5. Step 5: Solve for x
    x = 11,782,772,598.62/147,901.90
  6. Step 6: Final answer
    x = 79,666.13

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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.