Home / 104,376.48-144,141.80-72,193.52

Finding the Fourth Proportional to 104,376.48, 144,141.80 and 72,193.52

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Solution

The fourth proportional to 104,376.48, 144,141.80 and 72,193.52 is: 99,697.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,376.48 : 144,141.80 = 72,193.52 : x
  2. Step 2: Convert to fraction form
    104,376.48/144,141.80 = 72,193.52/x
  3. Step 3: Cross multiply
    104,376.48x = 144,141.80 × 72,193.52
  4. Step 4: Simplify right side
    104,376.48x = 10,406,103,921.14
  5. Step 5: Solve for x
    x = 10,406,103,921.14/104,376.48
  6. Step 6: Final answer
    x = 99,697.79

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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.