Home / 112,320.70-155,064.84-76,563.24

Finding the Fourth Proportional to 112,320.70, 155,064.84 and 76,563.24

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Solution

The fourth proportional to 112,320.70, 155,064.84 and 76,563.24 is: 105,699.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,320.70 : 155,064.84 = 76,563.24 : x
  2. Step 2: Convert to fraction form
    112,320.70/155,064.84 = 76,563.24/x
  3. Step 3: Cross multiply
    112,320.70x = 155,064.84 × 76,563.24
  4. Step 4: Simplify right side
    112,320.70x = 11,872,266,560.48
  5. Step 5: Solve for x
    x = 11,872,266,560.48/112,320.70
  6. Step 6: Final answer
    x = 105,699.72

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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.