Home / 147,961.12-221,875.80-42,755.08

Finding the Fourth Proportional to 147,961.12, 221,875.80 and 42,755.08

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Solution

The fourth proportional to 147,961.12, 221,875.80 and 42,755.08 is: 64,113.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,961.12 : 221,875.80 = 42,755.08 : x
  2. Step 2: Convert to fraction form
    147,961.12/221,875.80 = 42,755.08/x
  3. Step 3: Cross multiply
    147,961.12x = 221,875.80 × 42,755.08
  4. Step 4: Simplify right side
    147,961.12x = 9,486,317,579.06
  5. Step 5: Solve for x
    x = 9,486,317,579.06/147,961.12
  6. Step 6: Final answer
    x = 64,113.58

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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.