Home / 104,521.28-144,239.64-56,774.24

Finding the Fourth Proportional to 104,521.28, 144,239.64 and 56,774.24

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Solution

The fourth proportional to 104,521.28, 144,239.64 and 56,774.24 is: 78,348.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,521.28 : 144,239.64 = 56,774.24 : x
  2. Step 2: Convert to fraction form
    104,521.28/144,239.64 = 56,774.24/x
  3. Step 3: Cross multiply
    104,521.28x = 144,239.64 × 56,774.24
  4. Step 4: Simplify right side
    104,521.28x = 8,189,095,938.87
  5. Step 5: Solve for x
    x = 8,189,095,938.87/104,521.28
  6. Step 6: Final answer
    x = 78,348.60

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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.