Home / 105,187.50-145,156.70-57,441.24

Finding the Fourth Proportional to 105,187.50, 145,156.70 and 57,441.24

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Solution

The fourth proportional to 105,187.50, 145,156.70 and 57,441.24 is: 79,267.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,187.50 : 145,156.70 = 57,441.24 : x
  2. Step 2: Convert to fraction form
    105,187.50/145,156.70 = 57,441.24/x
  3. Step 3: Cross multiply
    105,187.50x = 145,156.70 × 57,441.24
  4. Step 4: Simplify right side
    105,187.50x = 8,337,980,555.10
  5. Step 5: Solve for x
    x = 8,337,980,555.10/105,187.50
  6. Step 6: Final answer
    x = 79,267.79

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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.