Home / 121,445.28-182,193.84-42,564.32

Finding the Fourth Proportional to 121,445.28, 182,193.84 and 42,564.32

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Solution

The fourth proportional to 121,445.28, 182,193.84 and 42,564.32 is: 63,855.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,445.28 : 182,193.84 = 42,564.32 : x
  2. Step 2: Convert to fraction form
    121,445.28/182,193.84 = 42,564.32/x
  3. Step 3: Cross multiply
    121,445.28x = 182,193.84 × 42,564.32
  4. Step 4: Simplify right side
    121,445.28x = 7,754,956,907.79
  5. Step 5: Solve for x
    x = 7,754,956,907.79/121,445.28
  6. Step 6: Final answer
    x = 63,855.56

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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.