Home / 104,490-144,194.92-56,743.69

Finding the Fourth Proportional to 104,490, 144,194.92 and 56,743.69

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Solution

The fourth proportional to 104,490, 144,194.92 and 56,743.69 is: 78,305.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,490 : 144,194.92 = 56,743.69 : x
  2. Step 2: Convert to fraction form
    104,490/144,194.92 = 56,743.69/x
  3. Step 3: Cross multiply
    104,490x = 144,194.92 × 56,743.69
  4. Step 4: Simplify right side
    104,490x = 8,182,151,927.26
  5. Step 5: Solve for x
    x = 8,182,151,927.26/104,490
  6. Step 6: Final answer
    x = 78,305.60

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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.