Home / 107,333.85-148,018.71-78,235.77

Finding the Fourth Proportional to 107,333.85, 148,018.71 and 78,235.77

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Solution

The fourth proportional to 107,333.85, 148,018.71 and 78,235.77 is: 107,891.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,333.85 : 148,018.71 = 78,235.77 : x
  2. Step 2: Convert to fraction form
    107,333.85/148,018.71 = 78,235.77/x
  3. Step 3: Cross multiply
    107,333.85x = 148,018.71 × 78,235.77
  4. Step 4: Simplify right side
    107,333.85x = 11,580,357,751.26
  5. Step 5: Solve for x
    x = 11,580,357,751.26/107,333.85
  6. Step 6: Final answer
    x = 107,891.01

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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.