Home / 104,053.12-143,592.80-56,306.40

Finding the Fourth Proportional to 104,053.12, 143,592.80 and 56,306.40

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Solution

The fourth proportional to 104,053.12, 143,592.80 and 56,306.40 is: 77,702.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,053.12 : 143,592.80 = 56,306.40 : x
  2. Step 2: Convert to fraction form
    104,053.12/143,592.80 = 56,306.40/x
  3. Step 3: Cross multiply
    104,053.12x = 143,592.80 × 56,306.40
  4. Step 4: Simplify right side
    104,053.12x = 8,085,193,633.92
  5. Step 5: Solve for x
    x = 8,085,193,633.92/104,053.12
  6. Step 6: Final answer
    x = 77,702.56

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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.